Fix incremental parsing when class name is changed.

pkg/analyzer/lib/src/generated/parser.dart

Index: pkg/analyzer/lib/src/generated/parser.dart
diff --git a/pkg/analyzer/lib/src/generated/parser.dart b/pkg/analyzer/lib/src/generated/parser.dart
index 77d9328e61e0ac37229b987c0fc830b026794880..735c98b6d8606bc5ae8ec7f97b1fb04689a346ab 100644
--- a/pkg/analyzer/lib/src/generated/parser.dart
+++ b/pkg/analyzer/lib/src/generated/parser.dart
@@ -839,7 +839,9 @@ class IncrementalParseDispatcher implements AstVisitor<AstNode> {
     } else if (node.metadata.contains(_oldNode)) {
       return _parser.parseAnnotation();
     } else if (identical(_oldNode, node.name)) {
-      return _parser.parseSimpleIdentifier();
+      // Changing the class name changes whether a member is interpreted as a
+      // constructor or not, so we'll just have to re-parse the entire class.
+      throw new InsufficientContextException();
     } else if (identical(_oldNode, node.typeParameters)) {
       return _parser.parseTypeParameterList();
     } else if (identical(_oldNode, node.extendsClause)) {