Record the dependency of a implicit constructor to its superclass.

tests/compiler/dart2js/deferred_follow_implicit_super_regression_test.dart

+// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'package:expect/expect.dart';
+import "package:async_helper/async_helper.dart";
+import 'memory_source_file_helper.dart';
+import "dart:async";
+
+import '../../../sdk/lib/_internal/compiler/implementation/dart2jslib.dart'
+       as dart2js;
+
+class FakeOutputStream<T> extends EventSink<T> {
+  void add(T event) {}
+  void addError(T event, [StackTrace stackTrace]) {}
+  void close() {}
+}
+
+runTest(String mainScript, test) {
+  Uri script = currentDirectory.resolveUri(Platform.script);
+  Uri libraryRoot = script.resolve('../../../sdk/');
+  Uri packageRoot = script.resolve('./packages/');
+
+  var provider = new MemorySourceFileProvider(MEMORY_SOURCE_FILES);
+  var handler = new FormattingDiagnosticHandler(provider);
+
+  Compiler compiler = new Compiler(provider.readStringFromUri,
+                                   (name, extension) => new FakeOutputStream(),
+                                   handler.diagnosticHandler,
+                                   libraryRoot,
+                                   packageRoot,
+                                   [],
+                                   {});
+  asyncTest(() => compiler.run(Uri.parse(mainScript))
+      .then((_) => test(compiler)));
+}
+
+void main() {
+  runTest('memory:main.dart', (compiler) {
+    var main = compiler.mainApp.find(dart2js.Compiler.MAIN);
+    Expect.isNotNull(main, "Could not find 'main'");
+    compiler.deferredLoadTask.onResolutionComplete(main);
+
+    var outputUnitForElement = compiler.deferredLoadTask.outputUnitForElement;
+
+    var lib = compiler.libraries["memory:lib.dart"];
+    var a = lib.find("a");
+    var b = lib.find("b");
+    var c = lib.find("c");
+    var d = lib.find("d");
+    Expect.equals(outputUnitForElement(a), outputUnitForElement(b));
+    Expect.equals(outputUnitForElement(a), outputUnitForElement(c));
+    Expect.equals(outputUnitForElement(a), outputUnitForElement(d));
+  });
+}
+
+// Make sure that the implicit references to supers are found by the deferred
+// loading dependency mechanism.
+const Map MEMORY_SOURCE_FILES = const {
+  "main.dart":"""
+import "lib.dart" deferred as lib;
+
+void main() {
+  lib.loadLibrary().then((_) {
+    new lib.A2();
+    new lib.B2();
+    new lib.C3();
+    new lib.D3(10);
+  });
+}
+""",
+  "lib.dart":"""
+a() => print("123");
+
+b() => print("123");
+
+c() => print("123");
+
+d() => print("123");
+
+class B {
+  B() {
+    b();
+  }
+}
+
+class B2 extends B {
+  // No constructor creates a synthetic constructor that has an implicit
+  // super-call.
+}
+
+class A {
+  A() {
+    a();
+  }
+}
+
+class A2 extends A {
+  // Implicit super call.
+  A2();
+}
+
+class C1 {}
+
+class C2 {
+  C2() {
+    c();
+  }
+}
+
+class C2p {
+  C2() {
+    c();
+  }
+}
+
+class C3 extends C2 with C1 {
+  // Implicit redirecting "super" call via mixin.
+}
+
+class D1 {
+}
+
+class D2 {
+  D2(x) {
+    d();
+  }
+}
+
+// Implicit redirecting "super" call with a parameter via mixin.
+class D3 = D2 with D1;
+""",
+};