Prototype re-compiling methods in dart2js

lib/compiler/implementation/ssa/builder.dart

Index: lib/compiler/implementation/ssa/builder.dart
diff --git a/lib/compiler/implementation/ssa/builder.dart b/lib/compiler/implementation/ssa/builder.dart
index c5b35184a51f412859fd4f97f39845f1df1c057e..5fe36054a309011284ac6834c164782ee67adab9 100644
--- a/lib/compiler/implementation/ssa/builder.dart
+++ b/lib/compiler/implementation/ssa/builder.dart
@@ -1493,6 +1493,9 @@ class SsaBuilder extends ResolvedVisitor implements Visitor {
   }
 
   visitFunctionExpression(FunctionExpression node) {
+    if (compiler.pass == 2) {
+      throw new Pass2BailoutException("visitFunctionExpression");
+    }
     ClosureData nestedClosureData = builder.closureDataCache[node];
     if (nestedClosureData === null) {
       // TODO(floitsch): we can only assume that the reason for not having a
@@ -1504,11 +1507,13 @@ class SsaBuilder extends ResolvedVisitor implements Visitor {
     ClassElement closureClassElement =
         nestedClosureData.closureClassElement;
     FunctionElement callElement = nestedClosureData.callElement;
-    // TODO(ahe): This should be registered in codegen, not here.
-    compiler.enqueuer.codegen.addToWorkList(callElement, elements);
-    // TODO(ahe): This should be registered in codegen, not here.
-    compiler.enqueuer.codegen.registerInstantiatedClass(closureClassElement);
-    assert(closureClassElement.members.isEmpty());
+    if (compiler.pass == 1) {
+      // TODO(ahe): This should be registered in codegen, not here.
+      compiler.enqueuer.codegen.addToWorkList(callElement, elements);
+      // TODO(ahe): This should be registered in codegen, not here.
+      compiler.enqueuer.codegen.registerInstantiatedClass(closureClassElement);
+      assert(closureClassElement.members.isEmpty());
+    }
 
     List<HInstruction> capturedVariables = <HInstruction>[];
     for (Element member in closureClassElement.backendMembers) {