Allow getField of methods.

sdk/lib/_internal/lib/js_mirrors.dart

Index: sdk/lib/_internal/lib/js_mirrors.dart
diff --git a/sdk/lib/_internal/lib/js_mirrors.dart b/sdk/lib/_internal/lib/js_mirrors.dart
index cc6787f54811d47087ae07d80bf2db08c00cfc4c..8c5a50bb0aeeb3f733fd1259e50c47391562abe2 100644
--- a/sdk/lib/_internal/lib/js_mirrors.dart
+++ b/sdk/lib/_internal/lib/js_mirrors.dart
@@ -386,10 +386,13 @@ class JsLibraryMirror extends JsDeclarationMirror with JsObjectMirror
       String name = _functions[i];
       var jsFunction = JS('', '#[#]', _globalObject, name);
       String unmangledName = mangledGlobalNames[name];
-      if (unmangledName == null) {
+      if (unmangledName == null ||
+          JS('bool', "!!#['getterStub']", jsFunction)) {
         // If there is no unmangledName, [jsFunction] is either a synthetic
         // implementation detail, or something that is excluded
         // by @MirrorsUsed.
+        // If it has a getterStub property it is a synthetic stub.
+        // TODO(floitsch): Remove the getterStub hack.
         continue;
       }
       bool isConstructor = unmangledName.startsWith('new ');