Implement .getCallType

pkg/compiler/lib/src/js_backend/constant_emitter.dart

Index: pkg/compiler/lib/src/js_backend/constant_emitter.dart
diff --git a/pkg/compiler/lib/src/js_backend/constant_emitter.dart b/pkg/compiler/lib/src/js_backend/constant_emitter.dart
index e98e587b9423a08d629fc5b770d5023bc2b9856b..605b8f836dc88f5ef4477ec1e9bb86611f53d9aa 100644
--- a/pkg/compiler/lib/src/js_backend/constant_emitter.dart
+++ b/pkg/compiler/lib/src/js_backend/constant_emitter.dart
@@ -282,7 +282,6 @@ class ConstantEmitter implements ConstantValueVisitor<jsAst.Expression, Null> {
     if (type is InterfaceType) {
       element = type.element;
     } else if (type is TypedefType) {
-      // TODO(redemption): Handle typedef type literals from .dill.
       element = type.element;
     } else {
       assert(type is DynamicType);