fix(4122): preserve import.defer in CommonJS emit (#4149)

Author: a-tarasyuk

internal/ast/ast.go

@@ -2151,7 +2151,7 @@ func (node *NewExpression) propagateSubtreeFacts() SubtreeFacts {
 }
 
 func (node *MetaProperty) computeSubtreeFacts() SubtreeFacts {
-	return propagateSubtreeFacts(node.name)
+	return propagateSubtreeFacts(node.name) &^ SubtreeContainsIdentifier
 }
 
 func (node *NonNullExpression) computeSubtreeFacts() SubtreeFacts {

testdata/baselines/reference/compiler/importDeferCallCommonJS.errors.txt

@@ -0,0 +1,12 @@
+main.ts(2,1): error TS18060: Deferred imports are only supported when the '--module' flag is set to 'esnext' or 'preserve'.
+
+
+==== a.ts (0 errors) ====
+    export {};
+    
+==== main.ts (1 errors) ====
+    export {};
+    import.defer("./a");
+    ~~~~~~~~~~~~~~~~~~~
+!!! error TS18060: Deferred imports are only supported when the '--module' flag is set to 'esnext' or 'preserve'.
+    

testdata/baselines/reference/compiler/importDeferCallCommonJS.js

@@ -0,0 +1,17 @@
+//// [tests/cases/compiler/importDeferCallCommonJS.ts] ////
+
+//// [a.ts]
+export {};
+
+//// [main.ts]
+export {};
+import.defer("./a");
+
+
+//// [a.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+//// [main.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+import.defer("./a");

testdata/baselines/reference/compiler/importDeferCallCommonJS.symbols

@@ -0,0 +1,11 @@
+//// [tests/cases/compiler/importDeferCallCommonJS.ts] ////
+
+=== a.ts ===
+
+export {};
+
+=== main.ts ===
+export {};
+import.defer("./a");
+>"./a" : Symbol("./a", Decl(a.ts, 0, 0))
+

testdata/baselines/reference/compiler/importDeferCallCommonJS.types

@@ -0,0 +1,13 @@
+//// [tests/cases/compiler/importDeferCallCommonJS.ts] ////
+
+=== a.ts ===
+
+export {};
+
+=== main.ts ===
+export {};
+import.defer("./a");
+>import.defer("./a") : Promise<typeof import("./a")>
+>defer : any
+>"./a" : "./a"
+

testdata/tests/cases/compiler/importDeferCallCommonJS.ts

@@ -0,0 +1,8 @@
+// @module: commonjs
+
+// @filename: a.ts
+export {};
+
+// @filename: main.ts
+export {};
+import.defer("./a");