Fix #3912: emit declaration for binding elements correctelly

src/compiler/declarationEmitter.ts

@@ -1501,11 +1501,8 @@ namespace ts {
                         //      emit    : declare function foo({y: [a, b, c]}: { y: [any, any, any] }) void;
                         writeTextOfNode(currentSourceFile, bindingElement.propertyName);
                         write(": ");
-
-                        // If bindingElement has propertyName property, then its name must be another bindingPattern of SyntaxKind.ObjectBindingPattern
-                        emitBindingPattern(<BindingPattern>bindingElement.name);
                     }
-                    else if (bindingElement.name) {
+                    if (bindingElement.name) {
                         if (isBindingPattern(bindingElement.name)) {
                             // If it is a nested binding pattern, we will recursively descend into each element and emit each one separately.
                             // In the case of rest element, we will omit rest element.

tests/baselines/reference/paramterDestrcuturingDeclaration.js

@@ -0,0 +1,20 @@
+//// [paramterDestrcuturingDeclaration.ts]
+
+interface C {
+    ({p: name}): any;
+    new ({p: boolean}): any;
+}
+
+
+//// [paramterDestrcuturingDeclaration.js]
+
+
+//// [paramterDestrcuturingDeclaration.d.ts]
+interface C {
+    ({p: name}: {
+        p: any;
+    }): any;
+    new ({p: boolean}: {
+        p: any;
+    }): any;
+}

tests/baselines/reference/paramterDestrcuturingDeclaration.symbols

@@ -0,0 +1,14 @@
+=== tests/cases/compiler/paramterDestrcuturingDeclaration.ts ===
+
+interface C {
+>C : Symbol(C, Decl(paramterDestrcuturingDeclaration.ts, 0, 0))
+
+    ({p: name}): any;
+>p : Symbol(p)
+>name : Symbol(name, Decl(paramterDestrcuturingDeclaration.ts, 2, 6))
+
+    new ({p: boolean}): any;
+>p : Symbol(p)
+>boolean : Symbol(boolean, Decl(paramterDestrcuturingDeclaration.ts, 3, 10))
+}
+

tests/baselines/reference/paramterDestrcuturingDeclaration.types

@@ -0,0 +1,14 @@
+=== tests/cases/compiler/paramterDestrcuturingDeclaration.ts ===
+
+interface C {
+>C : C
+
+    ({p: name}): any;
+>p : any
+>name : any
+
+    new ({p: boolean}): any;
+>p : any
+>boolean : any
+}
+

tests/cases/compiler/paramterDestrcuturingDeclaration.ts

@@ -0,0 +1,6 @@
+// @declaration: true
+
+interface C {
+    ({p: name}): any;
+    new ({p: boolean}): any;
+}