diff --git a/tests/baselines/reference/multipleDeclarations.js b/tests/baselines/reference/multipleDeclarations.js
new file mode 100644
index 0000000000..5f5ac29e90
--- /dev/null
+++ b/tests/baselines/reference/multipleDeclarations.js
@@ -0,0 +1,17 @@
+//// [input.js]
+
+function C() {
+    this.m = null;
+}
+C.prototype.m = function() {
+    this.nothing();
+};
+
+
+//// [output.js]
+function C() {
+    this.m = null;
+}
+C.prototype.m = function () {
+    this.nothing();
+};
diff --git a/tests/baselines/reference/multipleDeclarations.symbols b/tests/baselines/reference/multipleDeclarations.symbols
new file mode 100644
index 0000000000..0c8569ab89
--- /dev/null
+++ b/tests/baselines/reference/multipleDeclarations.symbols
@@ -0,0 +1,17 @@
+=== tests/cases/conformance/salsa/input.js ===
+
+function C() {
+>C : Symbol(C, Decl(input.js, 0, 0))
+
+    this.m = null;
+>m : Symbol(C.m, Decl(input.js, 1, 14), Decl(input.js, 3, 1))
+}
+C.prototype.m = function() {
+>C.prototype : Symbol(C.m, Decl(input.js, 1, 14), Decl(input.js, 3, 1))
+>C : Symbol(C, Decl(input.js, 0, 0))
+>prototype : Symbol(Function.prototype, Decl(lib.d.ts, --, --))
+>m : Symbol(C.m, Decl(input.js, 1, 14), Decl(input.js, 3, 1))
+
+    this.nothing();
+};
+
diff --git a/tests/baselines/reference/multipleDeclarations.types b/tests/baselines/reference/multipleDeclarations.types
new file mode 100644
index 0000000000..7c0a3de70c
--- /dev/null
+++ b/tests/baselines/reference/multipleDeclarations.types
@@ -0,0 +1,29 @@
+=== tests/cases/conformance/salsa/input.js ===
+
+function C() {
+>C : () => void
+
+    this.m = null;
+>this.m = null : null
+>this.m : any
+>this : any
+>m : any
+>null : null
+}
+C.prototype.m = function() {
+>C.prototype.m = function() {    this.nothing();} : () => void
+>C.prototype.m : any
+>C.prototype : any
+>C : () => void
+>prototype : any
+>m : any
+>function() {    this.nothing();} : () => void
+
+    this.nothing();
+>this.nothing() : any
+>this.nothing : any
+>this : { m: () => void; }
+>nothing : any
+
+};
+
diff --git a/tests/cases/conformance/salsa/multipleDeclarations.ts b/tests/cases/conformance/salsa/multipleDeclarations.ts
new file mode 100644
index 0000000000..6899be2ec8
--- /dev/null
+++ b/tests/cases/conformance/salsa/multipleDeclarations.ts
@@ -0,0 +1,10 @@
+// @filename: input.js
+// @out: output.js
+// @allowJs: true
+
+function C() {
+    this.m = null;
+}
+C.prototype.m = function() {
+    this.nothing();
+};