diff --git a/tests/baselines/reference/sourceMapValidationDestructuringParametertArrayBindingPattern2.js b/tests/baselines/reference/sourceMapValidationDestructuringParametertArrayBindingPattern2.js
new file mode 100644
index 0000000000..0aa302e099
--- /dev/null
+++ b/tests/baselines/reference/sourceMapValidationDestructuringParametertArrayBindingPattern2.js
@@ -0,0 +1,62 @@
+//// [sourceMapValidationDestructuringParametertArrayBindingPattern2.ts]
+declare var console: {
+    log(msg: any): void;
+}
+type Robot = [string, [string, string]];
+var robotA: Robot = ["trimmer", ["trimming", "edging"]];
+
+function foo1([, skillA]: Robot) {
+    console.log(skillA);
+}
+
+function foo2([nameMB]: Robot) {
+    console.log(nameMB);
+}
+
+function foo3([nameMA, [primarySkillA, secondarySkillA]]: Robot) {
+    console.log(nameMA);
+}
+
+function foo4([...multiRobotAInfo]: Robot) {
+    console.log(multiRobotAInfo);
+}
+
+foo1(robotA);
+foo1(["roomba", ["vaccum", "mopping"]]);
+
+foo2(robotA);
+foo2(["roomba", ["vaccum", "mopping"]]);
+
+foo3(robotA);
+foo3(["roomba", ["vaccum", "mopping"]]);
+
+foo4(robotA);
+foo4(["roomba", ["vaccum", "mopping"]]);
+
+//// [sourceMapValidationDestructuringParametertArrayBindingPattern2.js]
+var robotA = ["trimmer", ["trimming", "edging"]];
+function foo1(_a) {
+    var skillA = _a[1];
+    console.log(skillA);
+}
+function foo2(_a) {
+    var nameMB = _a[0];
+    console.log(nameMB);
+}
+function foo3(_a) {
+    var nameMA = _a[0], _b = _a[1], primarySkillA = _b[0], secondarySkillA = _b[1];
+    console.log(nameMA);
+}
+function foo4(_a) {
+    var multiRobotAInfo = _a.slice(0);
+    console.log(multiRobotAInfo);
+}
+foo1(robotA);
+foo1(["roomba", ["vaccum", "mopping"]]);
+foo2(robotA);
+foo2(["roomba", ["vaccum", "mopping"]]);
+foo3(robotA);
+foo3(["roomba", ["vaccum", "mopping"]]);
+foo4(robotA);
+foo4(["roomba", ["vaccum", "mopping"]]);
+//# sourceMappingURL=sourceMapValidationDestructuringParametertArrayBindingPattern2.js.map
\ No newline at end of file
diff --git a/tests/baselines/reference/sourceMapValidationDestructuringParametertArrayBindingPattern2.js.map b/tests/baselines/reference/sourceMapValidationDestructuringParametertArrayBindingPattern2.js.map
new file mode 100644
index 0000000000..aa8ada6f3b
--- /dev/null
+++ b/tests/baselines/reference/sourceMapValidationDestructuringParametertArrayBindingPattern2.js.map
@@ -0,0 +1,2 @@
+//// [sourceMapValidationDestructuringParametertArrayBindingPattern2.js.map]
+{"version":3,"file":"sourceMapValidationDestructuringParametertArrayBindingPattern2.js","sourceRoot":"","sources":["sourceMapValidationDestructuringParametertArrayBindingPattern2.ts"],"names":[],"mappings":"AAIA,IAAI,MAAM,GAAU,CAAC,SAAS,EAAE,CAAC,UAAU,EAAE,QAAQ,CAAC,CAAC,CAAC;AAExD,cAAc,EAAiB;QAAjB,cAAiB;IAC3B,OAAO,CAAC,GAAG,CAAC,MAAM,CAAC,CAAC;AACxB,CAAC;AAED,cAAc,EAAe;QAAf,cAAe;IACzB,OAAO,CAAC,GAAG,CAAC,MAAM,CAAC,CAAC;AACxB,CAAC;AAED,cAAc,EAAiD;QAAhD,cAAM,EAAE,UAAgC,EAA/B,qBAAa,EAAE,uBAAe;IAClD,OAAO,CAAC,GAAG,CAAC,MAAM,CAAC,CAAC;AACxB,CAAC;AAED,cAAc,EAA2B;QAA3B,6BAA2B;IACrC,OAAO,CAAC,GAAG,CAAC,eAAe,CAAC,CAAC;AACjC,CAAC;AAED,IAAI,CAAC,MAAM,CAAC,CAAC;AACb,IAAI,CAAC,CAAC,QAAQ,EAAE,CAAC,QAAQ,EAAE,SAAS,CAAC,CAAC,CAAC,CAAC;AAExC,IAAI,CAAC,MAAM,CAAC,CAAC;AACb,IAAI,CAAC,CAAC,QAAQ,EAAE,CAAC,QAAQ,EAAE,SAAS,CAAC,CAAC,CAAC,CAAC;AAExC,IAAI,CAAC,MAAM,CAAC,CAAC;AACb,IAAI,CAAC,CAAC,QAAQ,EAAE,CAAC,QAAQ,EAAE,SAAS,CAAC,CAAC,CAAC,CAAC;AAExC,IAAI,CAAC,MAAM,CAAC,CAAC;AACb,IAAI,CAAC,CAAC,QAAQ,EAAE,CAAC,QAAQ,EAAE,SAAS,CAAC,CAAC,CAAC,CAAC"}
\ No newline at end of file
diff --git a/tests/baselines/reference/sourceMapValidationDestructuringParametertArrayBindingPattern2.sourcemap.txt b/tests/baselines/reference/sourceMapValidationDestructuringParametertArrayBindingPattern2.sourcemap.txt
new file mode 100644
index 0000000000..e20536be8e
--- /dev/null
+++ b/tests/baselines/reference/sourceMapValidationDestructuringParametertArrayBindingPattern2.sourcemap.txt
@@ -0,0 +1,588 @@
+===================================================================
+JsFile: sourceMapValidationDestructuringParametertArrayBindingPattern2.js
+mapUrl: sourceMapValidationDestructuringParametertArrayBindingPattern2.js.map
+sourceRoot: 
+sources: sourceMapValidationDestructuringParametertArrayBindingPattern2.ts
+===================================================================
+-------------------------------------------------------------------
+emittedFile:tests/cases/compiler/sourceMapValidationDestructuringParametertArrayBindingPattern2.js
+sourceFile:sourceMapValidationDestructuringParametertArrayBindingPattern2.ts
+-------------------------------------------------------------------
+>>>var robotA = ["trimmer", ["trimming", "edging"]];
+1 >
+2 >^^^^
+3 >    ^^^^^^
+4 >          ^^^
+5 >             ^
+6 >              ^^^^^^^^^
+7 >                       ^^
+8 >                         ^
+9 >                          ^^^^^^^^^^
+10>                                    ^^
+11>                                      ^^^^^^^^
+12>                                              ^
+13>                                               ^
+14>                                                ^
+1 >declare var console: {
+  >    log(msg: any): void;
+  >}
+  >type Robot = [string, [string, string]];
+  >
+2 >var 
+3 >    robotA
+4 >          : Robot = 
+5 >             [
+6 >              "trimmer"
+7 >                       , 
+8 >                         [
+9 >                          "trimming"
+10>                                    , 
+11>                                      "edging"
+12>                                              ]
+13>                                               ]
+14>                                                ;
+1 >Emitted(1, 1) Source(5, 1) + SourceIndex(0)
+2 >Emitted(1, 5) Source(5, 5) + SourceIndex(0)
+3 >Emitted(1, 11) Source(5, 11) + SourceIndex(0)
+4 >Emitted(1, 14) Source(5, 21) + SourceIndex(0)
+5 >Emitted(1, 15) Source(5, 22) + SourceIndex(0)
+6 >Emitted(1, 24) Source(5, 31) + SourceIndex(0)
+7 >Emitted(1, 26) Source(5, 33) + SourceIndex(0)
+8 >Emitted(1, 27) Source(5, 34) + SourceIndex(0)
+9 >Emitted(1, 37) Source(5, 44) + SourceIndex(0)
+10>Emitted(1, 39) Source(5, 46) + SourceIndex(0)
+11>Emitted(1, 47) Source(5, 54) + SourceIndex(0)
+12>Emitted(1, 48) Source(5, 55) + SourceIndex(0)
+13>Emitted(1, 49) Source(5, 56) + SourceIndex(0)
+14>Emitted(1, 50) Source(5, 57) + SourceIndex(0)
+---
+>>>function foo1(_a) {
+1 >
+2 >^^^^^^^^^^^^^^
+3 >              ^^
+4 >                ^^^^^^^^->
+1 >
+  >
+  >
+2 >function foo1(
+3 >              [, skillA]: Robot
+1 >Emitted(2, 1) Source(7, 1) + SourceIndex(0)
+2 >Emitted(2, 15) Source(7, 15) + SourceIndex(0)
+3 >Emitted(2, 17) Source(7, 32) + SourceIndex(0)
+---
+>>>    var skillA = _a[1];
+1->^^^^^^^^
+2 >        ^^^^^^^^^^^^^^
+3 >                      ^^^->
+1->
+2 >        [, skillA]: Robot
+1->Emitted(3, 9) Source(7, 15) + SourceIndex(0)
+2 >Emitted(3, 23) Source(7, 32) + SourceIndex(0)
+---
+>>>    console.log(skillA);
+1->^^^^
+2 >    ^^^^^^^
+3 >           ^
+4 >            ^^^
+5 >               ^
+6 >                ^^^^^^
+7 >                      ^
+8 >                       ^
+1->) {
+  >    
+2 >    console
+3 >           .
+4 >            log
+5 >               (
+6 >                skillA
+7 >                      )
+8 >                       ;
+1->Emitted(4, 5) Source(8, 5) + SourceIndex(0)
+2 >Emitted(4, 12) Source(8, 12) + SourceIndex(0)
+3 >Emitted(4, 13) Source(8, 13) + SourceIndex(0)
+4 >Emitted(4, 16) Source(8, 16) + SourceIndex(0)
+5 >Emitted(4, 17) Source(8, 17) + SourceIndex(0)
+6 >Emitted(4, 23) Source(8, 23) + SourceIndex(0)
+7 >Emitted(4, 24) Source(8, 24) + SourceIndex(0)
+8 >Emitted(4, 25) Source(8, 25) + SourceIndex(0)
+---
+>>>}
+1 >
+2 >^
+3 > ^^^^^^^^^^^^^^^^^^^->
+1 >
+  >
+2 >}
+1 >Emitted(5, 1) Source(9, 1) + SourceIndex(0)
+2 >Emitted(5, 2) Source(9, 2) + SourceIndex(0)
+---
+>>>function foo2(_a) {
+1->
+2 >^^^^^^^^^^^^^^
+3 >              ^^
+4 >                ^^^^^^^^->
+1->
+  >
+  >
+2 >function foo2(
+3 >              [nameMB]: Robot
+1->Emitted(6, 1) Source(11, 1) + SourceIndex(0)
+2 >Emitted(6, 15) Source(11, 15) + SourceIndex(0)
+3 >Emitted(6, 17) Source(11, 30) + SourceIndex(0)
+---
+>>>    var nameMB = _a[0];
+1->^^^^^^^^
+2 >        ^^^^^^^^^^^^^^
+3 >                      ^^^->
+1->
+2 >        [nameMB]: Robot
+1->Emitted(7, 9) Source(11, 15) + SourceIndex(0)
+2 >Emitted(7, 23) Source(11, 30) + SourceIndex(0)
+---
+>>>    console.log(nameMB);
+1->^^^^
+2 >    ^^^^^^^
+3 >           ^
+4 >            ^^^
+5 >               ^
+6 >                ^^^^^^
+7 >                      ^
+8 >                       ^
+1->) {
+  >    
+2 >    console
+3 >           .
+4 >            log
+5 >               (
+6 >                nameMB
+7 >                      )
+8 >                       ;
+1->Emitted(8, 5) Source(12, 5) + SourceIndex(0)
+2 >Emitted(8, 12) Source(12, 12) + SourceIndex(0)
+3 >Emitted(8, 13) Source(12, 13) + SourceIndex(0)
+4 >Emitted(8, 16) Source(12, 16) + SourceIndex(0)
+5 >Emitted(8, 17) Source(12, 17) + SourceIndex(0)
+6 >Emitted(8, 23) Source(12, 23) + SourceIndex(0)
+7 >Emitted(8, 24) Source(12, 24) + SourceIndex(0)
+8 >Emitted(8, 25) Source(12, 25) + SourceIndex(0)
+---
+>>>}
+1 >
+2 >^
+3 > ^^^^^^^^^^^^^^^^^^^->
+1 >
+  >
+2 >}
+1 >Emitted(9, 1) Source(13, 1) + SourceIndex(0)
+2 >Emitted(9, 2) Source(13, 2) + SourceIndex(0)
+---
+>>>function foo3(_a) {
+1->
+2 >^^^^^^^^^^^^^^
+3 >              ^^
+4 >                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
+1->
+  >
+  >
+2 >function foo3(
+3 >              [nameMA, [primarySkillA, secondarySkillA]]: Robot
+1->Emitted(10, 1) Source(15, 1) + SourceIndex(0)
+2 >Emitted(10, 15) Source(15, 15) + SourceIndex(0)
+3 >Emitted(10, 17) Source(15, 64) + SourceIndex(0)
+---
+>>>    var nameMA = _a[0], _b = _a[1], primarySkillA = _b[0], secondarySkillA = _b[1];
+1->^^^^^^^^
+2 >        ^^^^^^^^^^^^^^
+3 >                      ^^
+4 >                        ^^^^^^^^^^
+5 >                                  ^^
+6 >                                    ^^^^^^^^^^^^^^^^^^^^^
+7 >                                                         ^^
+8 >                                                           ^^^^^^^^^^^^^^^^^^^^^^^
+1->
+2 >        nameMA
+3 >                      , 
+4 >                        [primarySkillA, secondarySkillA]
+5 >                                  
+6 >                                    primarySkillA
+7 >                                                         , 
+8 >                                                           secondarySkillA
+1->Emitted(11, 9) Source(15, 16) + SourceIndex(0)
+2 >Emitted(11, 23) Source(15, 22) + SourceIndex(0)
+3 >Emitted(11, 25) Source(15, 24) + SourceIndex(0)
+4 >Emitted(11, 35) Source(15, 56) + SourceIndex(0)
+5 >Emitted(11, 37) Source(15, 25) + SourceIndex(0)
+6 >Emitted(11, 58) Source(15, 38) + SourceIndex(0)
+7 >Emitted(11, 60) Source(15, 40) + SourceIndex(0)
+8 >Emitted(11, 83) Source(15, 55) + SourceIndex(0)
+---
+>>>    console.log(nameMA);
+1 >^^^^
+2 >    ^^^^^^^
+3 >           ^
+4 >            ^^^
+5 >               ^
+6 >                ^^^^^^
+7 >                      ^
+8 >                       ^
+1 >]]: Robot) {
+  >    
+2 >    console
+3 >           .
+4 >            log
+5 >               (
+6 >                nameMA
+7 >                      )
+8 >                       ;
+1 >Emitted(12, 5) Source(16, 5) + SourceIndex(0)
+2 >Emitted(12, 12) Source(16, 12) + SourceIndex(0)
+3 >Emitted(12, 13) Source(16, 13) + SourceIndex(0)
+4 >Emitted(12, 16) Source(16, 16) + SourceIndex(0)
+5 >Emitted(12, 17) Source(16, 17) + SourceIndex(0)
+6 >Emitted(12, 23) Source(16, 23) + SourceIndex(0)
+7 >Emitted(12, 24) Source(16, 24) + SourceIndex(0)
+8 >Emitted(12, 25) Source(16, 25) + SourceIndex(0)
+---
+>>>}
+1 >
+2 >^
+3 > ^^^^^^^^^^^^^^^^^^^->
+1 >
+  >
+2 >}
+1 >Emitted(13, 1) Source(17, 1) + SourceIndex(0)
+2 >Emitted(13, 2) Source(17, 2) + SourceIndex(0)
+---
+>>>function foo4(_a) {
+1->
+2 >^^^^^^^^^^^^^^
+3 >              ^^
+4 >                ^^^^^^^^^^^^^^^^^^^^^^^->
+1->
+  >
+  >
+2 >function foo4(
+3 >              [...multiRobotAInfo]: Robot
+1->Emitted(14, 1) Source(19, 1) + SourceIndex(0)
+2 >Emitted(14, 15) Source(19, 15) + SourceIndex(0)
+3 >Emitted(14, 17) Source(19, 42) + SourceIndex(0)
+---
+>>>    var multiRobotAInfo = _a.slice(0);
+1->^^^^^^^^
+2 >        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+1->
+2 >        [...multiRobotAInfo]: Robot
+1->Emitted(15, 9) Source(19, 15) + SourceIndex(0)
+2 >Emitted(15, 38) Source(19, 42) + SourceIndex(0)
+---
+>>>    console.log(multiRobotAInfo);
+1 >^^^^
+2 >    ^^^^^^^
+3 >           ^
+4 >            ^^^
+5 >               ^
+6 >                ^^^^^^^^^^^^^^^
+7 >                               ^
+8 >                                ^
+1 >) {
+  >    
+2 >    console
+3 >           .
+4 >            log
+5 >               (
+6 >                multiRobotAInfo
+7 >                               )
+8 >                                ;
+1 >Emitted(16, 5) Source(20, 5) + SourceIndex(0)
+2 >Emitted(16, 12) Source(20, 12) + SourceIndex(0)
+3 >Emitted(16, 13) Source(20, 13) + SourceIndex(0)
+4 >Emitted(16, 16) Source(20, 16) + SourceIndex(0)
+5 >Emitted(16, 17) Source(20, 17) + SourceIndex(0)
+6 >Emitted(16, 32) Source(20, 32) + SourceIndex(0)
+7 >Emitted(16, 33) Source(20, 33) + SourceIndex(0)
+8 >Emitted(16, 34) Source(20, 34) + SourceIndex(0)
+---
+>>>}
+1 >
+2 >^
+3 > ^^^^^^^^^^^^^->
+1 >
+  >
+2 >}
+1 >Emitted(17, 1) Source(21, 1) + SourceIndex(0)
+2 >Emitted(17, 2) Source(21, 2) + SourceIndex(0)
+---
+>>>foo1(robotA);
+1->
+2 >^^^^
+3 >    ^
+4 >     ^^^^^^
+5 >           ^
+6 >            ^
+7 >             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
+1->
+  >
+  >
+2 >foo1
+3 >    (
+4 >     robotA
+5 >           )
+6 >            ;
+1->Emitted(18, 1) Source(23, 1) + SourceIndex(0)
+2 >Emitted(18, 5) Source(23, 5) + SourceIndex(0)
+3 >Emitted(18, 6) Source(23, 6) + SourceIndex(0)
+4 >Emitted(18, 12) Source(23, 12) + SourceIndex(0)
+5 >Emitted(18, 13) Source(23, 13) + SourceIndex(0)
+6 >Emitted(18, 14) Source(23, 14) + SourceIndex(0)
+---
+>>>foo1(["roomba", ["vaccum", "mopping"]]);
+1->
+2 >^^^^
+3 >    ^
+4 >     ^
+5 >      ^^^^^^^^
+6 >              ^^
+7 >                ^
+8 >                 ^^^^^^^^
+9 >                         ^^
+10>                           ^^^^^^^^^
+11>                                    ^
+12>                                     ^
+13>                                      ^
+14>                                       ^
+1->
+  >
+2 >foo1
+3 >    (
+4 >     [
+5 >      "roomba"
+6 >              , 
+7 >                [
+8 >                 "vaccum"
+9 >                         , 
+10>                           "mopping"
+11>                                    ]
+12>                                     ]
+13>                                      )
+14>                                       ;
+1->Emitted(19, 1) Source(24, 1) + SourceIndex(0)
+2 >Emitted(19, 5) Source(24, 5) + SourceIndex(0)
+3 >Emitted(19, 6) Source(24, 6) + SourceIndex(0)
+4 >Emitted(19, 7) Source(24, 7) + SourceIndex(0)
+5 >Emitted(19, 15) Source(24, 15) + SourceIndex(0)
+6 >Emitted(19, 17) Source(24, 17) + SourceIndex(0)
+7 >Emitted(19, 18) Source(24, 18) + SourceIndex(0)
+8 >Emitted(19, 26) Source(24, 26) + SourceIndex(0)
+9 >Emitted(19, 28) Source(24, 28) + SourceIndex(0)
+10>Emitted(19, 37) Source(24, 37) + SourceIndex(0)
+11>Emitted(19, 38) Source(24, 38) + SourceIndex(0)
+12>Emitted(19, 39) Source(24, 39) + SourceIndex(0)
+13>Emitted(19, 40) Source(24, 40) + SourceIndex(0)
+14>Emitted(19, 41) Source(24, 41) + SourceIndex(0)
+---
+>>>foo2(robotA);
+1 >
+2 >^^^^
+3 >    ^
+4 >     ^^^^^^
+5 >           ^
+6 >            ^
+7 >             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
+1 >
+  >
+  >
+2 >foo2
+3 >    (
+4 >     robotA
+5 >           )
+6 >            ;
+1 >Emitted(20, 1) Source(26, 1) + SourceIndex(0)
+2 >Emitted(20, 5) Source(26, 5) + SourceIndex(0)
+3 >Emitted(20, 6) Source(26, 6) + SourceIndex(0)
+4 >Emitted(20, 12) Source(26, 12) + SourceIndex(0)
+5 >Emitted(20, 13) Source(26, 13) + SourceIndex(0)
+6 >Emitted(20, 14) Source(26, 14) + SourceIndex(0)
+---
+>>>foo2(["roomba", ["vaccum", "mopping"]]);
+1->
+2 >^^^^
+3 >    ^
+4 >     ^
+5 >      ^^^^^^^^
+6 >              ^^
+7 >                ^
+8 >                 ^^^^^^^^
+9 >                         ^^
+10>                           ^^^^^^^^^
+11>                                    ^
+12>                                     ^
+13>                                      ^
+14>                                       ^
+1->
+  >
+2 >foo2
+3 >    (
+4 >     [
+5 >      "roomba"
+6 >              , 
+7 >                [
+8 >                 "vaccum"
+9 >                         , 
+10>                           "mopping"
+11>                                    ]
+12>                                     ]
+13>                                      )
+14>                                       ;
+1->Emitted(21, 1) Source(27, 1) + SourceIndex(0)
+2 >Emitted(21, 5) Source(27, 5) + SourceIndex(0)
+3 >Emitted(21, 6) Source(27, 6) + SourceIndex(0)
+4 >Emitted(21, 7) Source(27, 7) + SourceIndex(0)
+5 >Emitted(21, 15) Source(27, 15) + SourceIndex(0)
+6 >Emitted(21, 17) Source(27, 17) + SourceIndex(0)
+7 >Emitted(21, 18) Source(27, 18) + SourceIndex(0)
+8 >Emitted(21, 26) Source(27, 26) + SourceIndex(0)
+9 >Emitted(21, 28) Source(27, 28) + SourceIndex(0)
+10>Emitted(21, 37) Source(27, 37) + SourceIndex(0)
+11>Emitted(21, 38) Source(27, 38) + SourceIndex(0)
+12>Emitted(21, 39) Source(27, 39) + SourceIndex(0)
+13>Emitted(21, 40) Source(27, 40) + SourceIndex(0)
+14>Emitted(21, 41) Source(27, 41) + SourceIndex(0)
+---
+>>>foo3(robotA);
+1 >
+2 >^^^^
+3 >    ^
+4 >     ^^^^^^
+5 >           ^
+6 >            ^
+7 >             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
+1 >
+  >
+  >
+2 >foo3
+3 >    (
+4 >     robotA
+5 >           )
+6 >            ;
+1 >Emitted(22, 1) Source(29, 1) + SourceIndex(0)
+2 >Emitted(22, 5) Source(29, 5) + SourceIndex(0)
+3 >Emitted(22, 6) Source(29, 6) + SourceIndex(0)
+4 >Emitted(22, 12) Source(29, 12) + SourceIndex(0)
+5 >Emitted(22, 13) Source(29, 13) + SourceIndex(0)
+6 >Emitted(22, 14) Source(29, 14) + SourceIndex(0)
+---
+>>>foo3(["roomba", ["vaccum", "mopping"]]);
+1->
+2 >^^^^
+3 >    ^
+4 >     ^
+5 >      ^^^^^^^^
+6 >              ^^
+7 >                ^
+8 >                 ^^^^^^^^
+9 >                         ^^
+10>                           ^^^^^^^^^
+11>                                    ^
+12>                                     ^
+13>                                      ^
+14>                                       ^
+1->
+  >
+2 >foo3
+3 >    (
+4 >     [
+5 >      "roomba"
+6 >              , 
+7 >                [
+8 >                 "vaccum"
+9 >                         , 
+10>                           "mopping"
+11>                                    ]
+12>                                     ]
+13>                                      )
+14>                                       ;
+1->Emitted(23, 1) Source(30, 1) + SourceIndex(0)
+2 >Emitted(23, 5) Source(30, 5) + SourceIndex(0)
+3 >Emitted(23, 6) Source(30, 6) + SourceIndex(0)
+4 >Emitted(23, 7) Source(30, 7) + SourceIndex(0)
+5 >Emitted(23, 15) Source(30, 15) + SourceIndex(0)
+6 >Emitted(23, 17) Source(30, 17) + SourceIndex(0)
+7 >Emitted(23, 18) Source(30, 18) + SourceIndex(0)
+8 >Emitted(23, 26) Source(30, 26) + SourceIndex(0)
+9 >Emitted(23, 28) Source(30, 28) + SourceIndex(0)
+10>Emitted(23, 37) Source(30, 37) + SourceIndex(0)
+11>Emitted(23, 38) Source(30, 38) + SourceIndex(0)
+12>Emitted(23, 39) Source(30, 39) + SourceIndex(0)
+13>Emitted(23, 40) Source(30, 40) + SourceIndex(0)
+14>Emitted(23, 41) Source(30, 41) + SourceIndex(0)
+---
+>>>foo4(robotA);
+1 >
+2 >^^^^
+3 >    ^
+4 >     ^^^^^^
+5 >           ^
+6 >            ^
+7 >             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
+1 >
+  >
+  >
+2 >foo4
+3 >    (
+4 >     robotA
+5 >           )
+6 >            ;
+1 >Emitted(24, 1) Source(32, 1) + SourceIndex(0)
+2 >Emitted(24, 5) Source(32, 5) + SourceIndex(0)
+3 >Emitted(24, 6) Source(32, 6) + SourceIndex(0)
+4 >Emitted(24, 12) Source(32, 12) + SourceIndex(0)
+5 >Emitted(24, 13) Source(32, 13) + SourceIndex(0)
+6 >Emitted(24, 14) Source(32, 14) + SourceIndex(0)
+---
+>>>foo4(["roomba", ["vaccum", "mopping"]]);
+1->
+2 >^^^^
+3 >    ^
+4 >     ^
+5 >      ^^^^^^^^
+6 >              ^^
+7 >                ^
+8 >                 ^^^^^^^^
+9 >                         ^^
+10>                           ^^^^^^^^^
+11>                                    ^
+12>                                     ^
+13>                                      ^
+14>                                       ^
+15>                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
+1->
+  >
+2 >foo4
+3 >    (
+4 >     [
+5 >      "roomba"
+6 >              , 
+7 >                [
+8 >                 "vaccum"
+9 >                         , 
+10>                           "mopping"
+11>                                    ]
+12>                                     ]
+13>                                      )
+14>                                       ;
+1->Emitted(25, 1) Source(33, 1) + SourceIndex(0)
+2 >Emitted(25, 5) Source(33, 5) + SourceIndex(0)
+3 >Emitted(25, 6) Source(33, 6) + SourceIndex(0)
+4 >Emitted(25, 7) Source(33, 7) + SourceIndex(0)
+5 >Emitted(25, 15) Source(33, 15) + SourceIndex(0)
+6 >Emitted(25, 17) Source(33, 17) + SourceIndex(0)
+7 >Emitted(25, 18) Source(33, 18) + SourceIndex(0)
+8 >Emitted(25, 26) Source(33, 26) + SourceIndex(0)
+9 >Emitted(25, 28) Source(33, 28) + SourceIndex(0)
+10>Emitted(25, 37) Source(33, 37) + SourceIndex(0)
+11>Emitted(25, 38) Source(33, 38) + SourceIndex(0)
+12>Emitted(25, 39) Source(33, 39) + SourceIndex(0)
+13>Emitted(25, 40) Source(33, 40) + SourceIndex(0)
+14>Emitted(25, 41) Source(33, 41) + SourceIndex(0)
+---
+>>>//# sourceMappingURL=sourceMapValidationDestructuringParametertArrayBindingPattern2.js.map
\ No newline at end of file
diff --git a/tests/baselines/reference/sourceMapValidationDestructuringParametertArrayBindingPattern2.symbols b/tests/baselines/reference/sourceMapValidationDestructuringParametertArrayBindingPattern2.symbols
new file mode 100644
index 0000000000..26797210f4
--- /dev/null
+++ b/tests/baselines/reference/sourceMapValidationDestructuringParametertArrayBindingPattern2.symbols
@@ -0,0 +1,93 @@
+=== tests/cases/compiler/sourceMapValidationDestructuringParametertArrayBindingPattern2.ts ===
+declare var console: {
+>console : Symbol(console, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 0, 11))
+
+    log(msg: any): void;
+>log : Symbol(log, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 0, 22))
+>msg : Symbol(msg, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 1, 8))
+}
+type Robot = [string, [string, string]];
+>Robot : Symbol(Robot, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 2, 1))
+
+var robotA: Robot = ["trimmer", ["trimming", "edging"]];
+>robotA : Symbol(robotA, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 4, 3))
+>Robot : Symbol(Robot, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 2, 1))
+
+function foo1([, skillA]: Robot) {
+>foo1 : Symbol(foo1, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 4, 56))
+>skillA : Symbol(skillA, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 6, 16))
+>Robot : Symbol(Robot, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 2, 1))
+
+    console.log(skillA);
+>console.log : Symbol(log, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 0, 22))
+>console : Symbol(console, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 0, 11))
+>log : Symbol(log, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 0, 22))
+>skillA : Symbol(skillA, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 6, 16))
+}
+
+function foo2([nameMB]: Robot) {
+>foo2 : Symbol(foo2, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 8, 1))
+>nameMB : Symbol(nameMB, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 10, 15))
+>Robot : Symbol(Robot, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 2, 1))
+
+    console.log(nameMB);
+>console.log : Symbol(log, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 0, 22))
+>console : Symbol(console, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 0, 11))
+>log : Symbol(log, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 0, 22))
+>nameMB : Symbol(nameMB, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 10, 15))
+}
+
+function foo3([nameMA, [primarySkillA, secondarySkillA]]: Robot) {
+>foo3 : Symbol(foo3, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 12, 1))
+>nameMA : Symbol(nameMA, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 14, 15))
+>primarySkillA : Symbol(primarySkillA, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 14, 24))
+>secondarySkillA : Symbol(secondarySkillA, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 14, 38))
+>Robot : Symbol(Robot, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 2, 1))
+
+    console.log(nameMA);
+>console.log : Symbol(log, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 0, 22))
+>console : Symbol(console, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 0, 11))
+>log : Symbol(log, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 0, 22))
+>nameMA : Symbol(nameMA, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 14, 15))
+}
+
+function foo4([...multiRobotAInfo]: Robot) {
+>foo4 : Symbol(foo4, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 16, 1))
+>multiRobotAInfo : Symbol(multiRobotAInfo, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 18, 15))
+>Robot : Symbol(Robot, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 2, 1))
+
+    console.log(multiRobotAInfo);
+>console.log : Symbol(log, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 0, 22))
+>console : Symbol(console, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 0, 11))
+>log : Symbol(log, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 0, 22))
+>multiRobotAInfo : Symbol(multiRobotAInfo, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 18, 15))
+}
+
+foo1(robotA);
+>foo1 : Symbol(foo1, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 4, 56))
+>robotA : Symbol(robotA, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 4, 3))
+
+foo1(["roomba", ["vaccum", "mopping"]]);
+>foo1 : Symbol(foo1, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 4, 56))
+
+foo2(robotA);
+>foo2 : Symbol(foo2, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 8, 1))
+>robotA : Symbol(robotA, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 4, 3))
+
+foo2(["roomba", ["vaccum", "mopping"]]);
+>foo2 : Symbol(foo2, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 8, 1))
+
+foo3(robotA);
+>foo3 : Symbol(foo3, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 12, 1))
+>robotA : Symbol(robotA, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 4, 3))
+
+foo3(["roomba", ["vaccum", "mopping"]]);
+>foo3 : Symbol(foo3, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 12, 1))
+
+foo4(robotA);
+>foo4 : Symbol(foo4, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 16, 1))
+>robotA : Symbol(robotA, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 4, 3))
+
+foo4(["roomba", ["vaccum", "mopping"]]);
+>foo4 : Symbol(foo4, Decl(sourceMapValidationDestructuringParametertArrayBindingPattern2.ts, 16, 1))
+
diff --git a/tests/baselines/reference/sourceMapValidationDestructuringParametertArrayBindingPattern2.types b/tests/baselines/reference/sourceMapValidationDestructuringParametertArrayBindingPattern2.types
new file mode 100644
index 0000000000..b3e09d962c
--- /dev/null
+++ b/tests/baselines/reference/sourceMapValidationDestructuringParametertArrayBindingPattern2.types
@@ -0,0 +1,131 @@
+=== tests/cases/compiler/sourceMapValidationDestructuringParametertArrayBindingPattern2.ts ===
+declare var console: {
+>console : { log(msg: any): void; }
+
+    log(msg: any): void;
+>log : (msg: any) => void
+>msg : any
+}
+type Robot = [string, [string, string]];
+>Robot : [string, [string, string]]
+
+var robotA: Robot = ["trimmer", ["trimming", "edging"]];
+>robotA : [string, [string, string]]
+>Robot : [string, [string, string]]
+>["trimmer", ["trimming", "edging"]] : [string, [string, string]]
+>"trimmer" : string
+>["trimming", "edging"] : [string, string]
+>"trimming" : string
+>"edging" : string
+
+function foo1([, skillA]: Robot) {
+>foo1 : ([, skillA]: [string, [string, string]]) => void
+> : undefined
+>skillA : [string, string]
+>Robot : [string, [string, string]]
+
+    console.log(skillA);
+>console.log(skillA) : void
+>console.log : (msg: any) => void
+>console : { log(msg: any): void; }
+>log : (msg: any) => void
+>skillA : [string, string]
+}
+
+function foo2([nameMB]: Robot) {
+>foo2 : ([nameMB]: [string, [string, string]]) => void
+>nameMB : string
+>Robot : [string, [string, string]]
+
+    console.log(nameMB);
+>console.log(nameMB) : void
+>console.log : (msg: any) => void
+>console : { log(msg: any): void; }
+>log : (msg: any) => void
+>nameMB : string
+}
+
+function foo3([nameMA, [primarySkillA, secondarySkillA]]: Robot) {
+>foo3 : ([nameMA, [primarySkillA, secondarySkillA]]: [string, [string, string]]) => void
+>nameMA : string
+>primarySkillA : string
+>secondarySkillA : string
+>Robot : [string, [string, string]]
+
+    console.log(nameMA);
+>console.log(nameMA) : void
+>console.log : (msg: any) => void
+>console : { log(msg: any): void; }
+>log : (msg: any) => void
+>nameMA : string
+}
+
+function foo4([...multiRobotAInfo]: Robot) {
+>foo4 : ([...multiRobotAInfo]: [string, [string, string]]) => void
+>multiRobotAInfo : (string | [string, string])[]
+>Robot : [string, [string, string]]
+
+    console.log(multiRobotAInfo);
+>console.log(multiRobotAInfo) : void
+>console.log : (msg: any) => void
+>console : { log(msg: any): void; }
+>log : (msg: any) => void
+>multiRobotAInfo : (string | [string, string])[]
+}
+
+foo1(robotA);
+>foo1(robotA) : void
+>foo1 : ([, skillA]: [string, [string, string]]) => void
+>robotA : [string, [string, string]]
+
+foo1(["roomba", ["vaccum", "mopping"]]);
+>foo1(["roomba", ["vaccum", "mopping"]]) : void
+>foo1 : ([, skillA]: [string, [string, string]]) => void
+>["roomba", ["vaccum", "mopping"]] : [string, [string, string]]
+>"roomba" : string
+>["vaccum", "mopping"] : [string, string]
+>"vaccum" : string
+>"mopping" : string
+
+foo2(robotA);
+>foo2(robotA) : void
+>foo2 : ([nameMB]: [string, [string, string]]) => void
+>robotA : [string, [string, string]]
+
+foo2(["roomba", ["vaccum", "mopping"]]);
+>foo2(["roomba", ["vaccum", "mopping"]]) : void
+>foo2 : ([nameMB]: [string, [string, string]]) => void
+>["roomba", ["vaccum", "mopping"]] : [string, [string, string]]
+>"roomba" : string
+>["vaccum", "mopping"] : [string, string]
+>"vaccum" : string
+>"mopping" : string
+
+foo3(robotA);
+>foo3(robotA) : void
+>foo3 : ([nameMA, [primarySkillA, secondarySkillA]]: [string, [string, string]]) => void
+>robotA : [string, [string, string]]
+
+foo3(["roomba", ["vaccum", "mopping"]]);
+>foo3(["roomba", ["vaccum", "mopping"]]) : void
+>foo3 : ([nameMA, [primarySkillA, secondarySkillA]]: [string, [string, string]]) => void
+>["roomba", ["vaccum", "mopping"]] : [string, [string, string]]
+>"roomba" : string
+>["vaccum", "mopping"] : [string, string]
+>"vaccum" : string
+>"mopping" : string
+
+foo4(robotA);
+>foo4(robotA) : void
+>foo4 : ([...multiRobotAInfo]: [string, [string, string]]) => void
+>robotA : [string, [string, string]]
+
+foo4(["roomba", ["vaccum", "mopping"]]);
+>foo4(["roomba", ["vaccum", "mopping"]]) : void
+>foo4 : ([...multiRobotAInfo]: [string, [string, string]]) => void
+>["roomba", ["vaccum", "mopping"]] : [string, [string, string]]
+>"roomba" : string
+>["vaccum", "mopping"] : [string, string]
+>"vaccum" : string
+>"mopping" : string
+
diff --git a/tests/cases/compiler/sourceMapValidationDestructuringParametertArrayBindingPattern2.ts b/tests/cases/compiler/sourceMapValidationDestructuringParametertArrayBindingPattern2.ts
new file mode 100644
index 0000000000..07c2a24e70
--- /dev/null
+++ b/tests/cases/compiler/sourceMapValidationDestructuringParametertArrayBindingPattern2.ts
@@ -0,0 +1,34 @@
+// @sourcemap: true
+declare var console: {
+    log(msg: any): void;
+}
+type Robot = [string, [string, string]];
+var robotA: Robot = ["trimmer", ["trimming", "edging"]];
+
+function foo1([, skillA]: Robot) {
+    console.log(skillA);
+}
+
+function foo2([nameMB]: Robot) {
+    console.log(nameMB);
+}
+
+function foo3([nameMA, [primarySkillA, secondarySkillA]]: Robot) {
+    console.log(nameMA);
+}
+
+function foo4([...multiRobotAInfo]: Robot) {
+    console.log(multiRobotAInfo);
+}
+
+foo1(robotA);
+foo1(["roomba", ["vaccum", "mopping"]]);
+
+foo2(robotA);
+foo2(["roomba", ["vaccum", "mopping"]]);
+
+foo3(robotA);
+foo3(["roomba", ["vaccum", "mopping"]]);
+
+foo4(robotA);
+foo4(["roomba", ["vaccum", "mopping"]]);
\ No newline at end of file