Support class and typedef literals as expressions.

lib/compiler/implementation/compiler.dart

Index: lib/compiler/implementation/compiler.dart
diff --git a/lib/compiler/implementation/compiler.dart b/lib/compiler/implementation/compiler.dart
index 0f5fa175133601bfff948f08cb1ba97eaa6bcd58..ac228b8c448ba4295aedd79b258333cfd947ecad 100644
--- a/lib/compiler/implementation/compiler.dart
+++ b/lib/compiler/implementation/compiler.dart
@@ -127,6 +127,7 @@ abstract class Compiler implements DiagnosticListener {
   ClassElement functionClass;
   ClassElement nullClass;
   ClassElement listClass;
+  ClassElement typeClass;
   ClassElement mapClass;
   ClassElement jsInvocationMirrorClass;
   Element assertMethod;
@@ -189,10 +190,24 @@ abstract class Compiler implements DiagnosticListener {
   static const SourceString START_ROOT_ISOLATE =
       const SourceString('startRootIsolate');
   bool enabledNoSuchMethod = false;
-  bool enabledRuntimeType = false;
   bool enabledFunctionApply = false;
   bool enabledInvokeOn = false;
 
+  bool _enabledRuntimeType = false;
+  bool _needsRuntimeTypeCache = false;
+
+  void enableRuntimeTypeFunction() {

[ahe, 2012/11/01 13:55:27]

Why do you need this complexity? What is wrong with a few booleans?

[karlklose, 2012/11/01 14:34:20]

It is not needed anymore. Before making the runtime cache a dart field, I wanted
to automatically include it, if the runtimeTypeFunction was found.

+    _enabledRuntimeType = true;
+    enableRuntimeTypeCache();
+  }
+
+  void enableRuntimeTypeCache() {
+    _needsRuntimeTypeCache = true;
+  }
+
+  bool get enabledRuntimeType => _enabledRuntimeType;
+  bool needsRuntimeTypeCache() => _needsRuntimeTypeCache;
+
   Stopwatch progress;
 
   static const int PHASE_SCANNING = 0;
@@ -403,6 +418,7 @@ abstract class Compiler implements DiagnosticListener {
     stringClass = lookupSpecialClass(const SourceString('String'));
     functionClass = lookupSpecialClass(const SourceString('Function'));
     listClass = lookupSpecialClass(const SourceString('List'));
+    typeClass = lookupSpecialClass(const SourceString('Type'));
     mapClass = lookupSpecialClass(const SourceString('Map'));
     jsInvocationMirrorClass =
         lookupSpecialClass(const SourceString('JSInvocationMirror'));