Handle most qualified sends.

pkg/compiler/lib/src/resolution/resolution_common.dart

Index: pkg/compiler/lib/src/resolution/resolution_common.dart
diff --git a/pkg/compiler/lib/src/resolution/resolution_common.dart b/pkg/compiler/lib/src/resolution/resolution_common.dart
index 5d3efcb717ec50ad0a56ccbf22a4ec89193afb79..9e16c28725ef7a073806e6338316108d85002886 100644
--- a/pkg/compiler/lib/src/resolution/resolution_common.dart
+++ b/pkg/compiler/lib/src/resolution/resolution_common.dart
@@ -13,7 +13,12 @@ class ResolverTask extends CompilerTask {
 
   WorldImpact resolve(Element element) {
     return measure(() {
-      if (Elements.isErroneous(element)) return null;
+      if (Elements.isErroneous(element)) {
+        assert(invariant(element, element is! ErroneousElement,

[karlklose, 2015/06/12 07:01:03]

Do we have a predicate to test that instead of an is check? If not, maybe add a
TODO to add one.

[Johnni Winther, 2015/06/12 07:50:30]

Done.

+            message: "Element $element expected to have parse errors."));
+        _ensureTreeElements(element);
+        return const WorldImpact();
+      }
 
       WorldImpact processMetadata([WorldImpact result]) {
         for (MetadataAnnotation metadata in element.metadata) {