Issue 6964. Optionally don't warn in Editor when class with noSuchMethod() has unimplemented member…

compiler/java/com/google/dart/compiler/type/TypeAnalyzer.java

Index: compiler/java/com/google/dart/compiler/type/TypeAnalyzer.java
diff --git a/compiler/java/com/google/dart/compiler/type/TypeAnalyzer.java b/compiler/java/com/google/dart/compiler/type/TypeAnalyzer.java
index c6fc65acb3a2d7214ed7608e51e655fb504fff79..c766ad0a431cf2d28774dc2bc8a4f2219557f656 100644
--- a/compiler/java/com/google/dart/compiler/type/TypeAnalyzer.java
+++ b/compiler/java/com/google/dart/compiler/type/TypeAnalyzer.java
@@ -1606,7 +1606,8 @@ public class TypeAnalyzer implements DartCompilationPhase {
       // remember unimplemented members
       {
         List<Element> unimplementedMembers = findUnimplementedMembers(element);
-        if (!node.getModifiers().isAbstract() && !unimplementedMembers.isEmpty()) {
+        if (!node.getModifiers().isAbstract() && !unimplementedMembers.isEmpty() &&
+            (reportNoMemberWhenHasInterceptor || !Elements.handlesNoSuchMethod(type))) {
           StringBuilder sb = getUnimplementedMembersMessage(element, unimplementedMembers);
           onError(node.getName(), TypeErrorCode.CONTRETE_CLASS_WITH_UNIMPLEMENTED_MEMBERS,
               node.getName(), sb.toString());