Implement adding methods.

dart/tests/try/web/incremental_compilation_update_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.
 
 library trydart.incremental_compilation_update_test;
 
 import 'dart:html';
 
 import 'dart:async' show
     Future;
@@ skipping 561 matching lines @@
     print('v1');
   }
 }
 main() {
   instance = new A('v2');
   foo();
 }
 """,
             const <String>['v2']),
     ],
+
+    // Test that top-level functions can be added.
+    const <ProgramResult>[
+        const ProgramResult(
+            r"""
+main() {
+  try {
+    foo();
+  } catch(e) {
+    print('v1');
+  }
+}
+""",
+            const <String>['v1']),
+        const ProgramResult(
+            r"""
+foo() {
+  print('v2');
+}
+
+main() {
+  try {
+    foo();
+  } catch(e) {
+    print('v1');
+  }
+}
+""",
+            const <String>['v2']),
+    ],
+
+    // Test that static methods can be added.
+    const <ProgramResult>[
+        const ProgramResult(
+            r"""
+class C {
+}
+
+main() {
+  try {
+    C.foo();
+  } catch(e) {
+    print('v1');
+  }
+}
+""",
+            const <String>['v1']),
+        const ProgramResult(
+            r"""
+class C {
+  static foo() {
+    print('v2');
+  }
+}
+
+main() {
+  try {
+    C.foo();
+  } catch(e) {
+    print('v1');
+  }
+}
+""",
+            const <String>['v2']),
+    ],
+
+    // Test that instance methods can be added.
+    const <ProgramResult>[
+        const ProgramResult(
+            r"""
+class C {
+}
+
+var instance;
+
+main() {
+  if (instance == null) {
+    instance = new C();
+  }
+
+  try {
+    instance.foo();
+  } catch(e) {
+    print('v1');
+  }
+}
+""",
+            const <String>['v1']),
+        const ProgramResult(
+            r"""
+class C {
+  foo() {
+    print('v2');
+  }
+}
+
+var instance;
+
+main() {
+  if (instance == null) {
+    instance = new C();
+  }
+
+  try {
+    instance.foo();
+  } catch(e) {
+    print('v1');
+  }
+}
+""",
+            const <String>['v2']),
+    ],
+
+    // Test that top-level functions can have signature changed.
+    const <ProgramResult>[
+        const ProgramResult(
+            r"""
+foo() {
+  print('v1');
+}
+
+main() {
+  foo();
+}
+""",
+            const <String>['v1']),
+        const ProgramResult(
+            r"""
+void foo() {
+  print('v2');
+}
+
+main() {
+  foo();
+}
+""",
+            const <String>['v2']),
+    ],
+
+    // Test that static methods can have signature changed.
+    const <ProgramResult>[
+        const ProgramResult(
+            r"""
+class C {
+  static foo() {
+    print('v1');
+  }
+}
+
+main() {
+  C.foo();
+}
+""",
+            const <String>['v1']),
+        const ProgramResult(
+            r"""
+class C {
+  static void foo() {
+    print('v2');
+  }
+}
+
+main() {
+  C.foo();
+}
+""",
+            const <String>['v2']),
+    ],
+
+    // Test that instance methods can have signature changed.
+    const <ProgramResult>[
+        const ProgramResult(
+            r"""
+class C {
+  foo() {
+    print('v1');
+  }
+}
+
+var instance;
+
+main() {
+  if (instance == null) {
+    instance = new C();
+  }
+
+  instance.foo();
+}
+""",
+            const <String>['v1']),
+        const ProgramResult(
+            r"""
+class C {
+  void foo() {
+    print('v2');
+  }
+}
+
+var instance;
+
+main() {
+  if (instance == null) {
+    instance = new C();
+  }
+
+  instance.foo();
+}
+""",
+            const <String>['v2']),
+    ],
 ];
 
 void main() {
   listener.start();
 
   document.head.append(lineNumberStyle());
 
   return asyncTest(() => Future.forEach(tests, compileAndRun));
 }
 
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   position: absolute;
   left: 0px;
   width: 3em;
   text-align: right;
   background-color: lightgoldenrodyellow;
 }
 ''');
   style.type = 'text/css';
   return style;
 }