Fix CommonJS rewrites in shorthand destructuring defaults (#4111)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: jakebailey <5341706+jakebailey@users.noreply.github.com>

Author: Copilot

internal/transformers/utilities.go

@@ -77,6 +77,8 @@ func IsIdentifierReference(name *ast.IdentifierNode, parent *ast.Node) bool {
 		ast.KindJsxAttribute:
 		// only an `Initializer()` child that can be `Identifier` would be an instance of `IdentifierReference`
 		return parent.Initializer() == name
+	case ast.KindShorthandPropertyAssignment:
+		return parent.AsShorthandPropertyAssignment().ObjectAssignmentInitializer == name
 	case ast.KindForStatement:
 		return parent.Initializer() == name ||
 			parent.AsForStatement().Condition == name ||

testdata/baselines/reference/compiler/commonjsShorthandDestructuringDefaultImportExport.js

@@ -0,0 +1,25 @@
+//// [tests/cases/compiler/commonjsShorthandDestructuringDefaultImportExport.ts] ////
+
+//// [a.ts]
+import { imported } from "./b";
+export const exported = 2;
+let a, b;
+({ a = imported, b = exported } = {});
+
+//// [b.ts]
+export const imported = 1;
+
+
+//// [b.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.imported = void 0;
+exports.imported = 1;
+//// [a.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.exported = void 0;
+const b_1 = require("./b");
+exports.exported = 2;
+let a, b;
+({ a = b_1.imported, b = exports.exported } = {});

testdata/tests/cases/compiler/commonjsShorthandDestructuringDefaultImportExport.ts

@@ -0,0 +1,12 @@
+// @target: es2015
+// @module: commonjs
+// @noTypesAndSymbols: true
+
+// @filename: /a.ts
+import { imported } from "./b";
+export const exported = 2;
+let a, b;
+({ a = imported, b = exported } = {});
+
+// @filename: /b.ts
+export const imported = 1;