Fixed bug in implicit analysis notification and renamed tests

pkg/analyzer/lib/src/context/context.dart

Index: pkg/analyzer/lib/src/context/context.dart
diff --git a/pkg/analyzer/lib/src/context/context.dart b/pkg/analyzer/lib/src/context/context.dart
index 5792c1c4521f541b33b5590668302eaff67205a5..1be6dfb1ab74021bd3d4ade08cf59d6c7bb8338f 100644
--- a/pkg/analyzer/lib/src/context/context.dart
+++ b/pkg/analyzer/lib/src/context/context.dart
@@ -1659,7 +1659,7 @@ class AnalysisContextImpl implements InternalAnalysisContext {
 
   void _removeFromCache(Source source) {
     CacheEntry entry = _cache.remove(source);
-    if (entry != null && entry.explicitlyAdded) {
+    if (entry != null && !entry.explicitlyAdded) {
       _implicitAnalysisEventsController
           .add(new ImplicitAnalysisEvent(source, false));
     }