Await it!

runtime/vm/ast_transformer.h

Index: runtime/vm/ast_transformer.h
diff --git a/runtime/vm/ast_transformer.h b/runtime/vm/ast_transformer.h
index 18faf7b3bd5cde8a5f93f28c19499bb650496476..23cde0f83fc863b78e4a5da33575e074919fca3a 100644
--- a/runtime/vm/ast_transformer.h
+++ b/runtime/vm/ast_transformer.h
@@ -46,7 +46,13 @@ class AwaitTransformer : public AstNodeVisitor {
       temp_cnt_(0),
       library_(library),
       parsed_function_(parsed_function),
-      isolate_(Isolate::Current()) {}
+      isolate_(Isolate::Current()) {
+    // We need the jump context var in this scope to later on save the current
+    // scope.

[srdjan, 2014/08/20 17:50:06]

Please fix comment.

[Michael Lippautz (Google), 2014/08/20 20:56:06]

Done.

+    preamble->scope()->LookupVariable(Symbols::AwaitContextVar(), false);
+    // We also need the jump counter in the FGB.

[srdjan, 2014/08/20 17:50:06]

Please use FlowGraphBuilder instead of FGB

[Michael Lippautz (Google), 2014/08/20 20:56:06]

Done.

+    preamble->scope()->LookupVariable(Symbols::AwaitJumpVar(), false);
+  }
 
 #define DECLARE_VISIT(BaseName)                                                \
   virtual void Visit##BaseName##Node(BaseName##Node* node);