Update 'new' in [new Name] comment references.

pkg/analyzer/lib/src/task/incremental_element_builder.dart

Index: pkg/analyzer/lib/src/task/incremental_element_builder.dart
diff --git a/pkg/analyzer/lib/src/task/incremental_element_builder.dart b/pkg/analyzer/lib/src/task/incremental_element_builder.dart
index ae0fdaf8a7cc1cc716fef19f8435942bae3808e5..e1f8c5ed49116cf209c1cb8126f6c4b5ad858c5e 100644
--- a/pkg/analyzer/lib/src/task/incremental_element_builder.dart
+++ b/pkg/analyzer/lib/src/task/incremental_element_builder.dart
@@ -576,8 +576,20 @@ class TokenUtils {
           List<Token> newReferences = newToken.references;
           assert(oldReferences.length == newReferences.length);
           for (int i = 0; i < oldReferences.length; i++) {
-            copyTokenOffsets(offsetMap, oldReferences[i], newReferences[i],
-                oldEndToken, newEndToken);
+            Token oldToken = oldReferences[i];
+            Token newToken = newReferences[i];
+            // For [new Name] the 'Name' token is the reference.
+            // But we need to process all tokens, including 'new'.
+            while (oldToken.previous != null &&
+                oldToken.previous.type != TokenType.EOF) {
+              oldToken = oldToken.previous;
+            }
+            while (newToken.previous != null &&
+                newToken.previous.type != TokenType.EOF) {
+              newToken = newToken.previous;
+            }
+            copyTokenOffsets(
+                offsetMap, oldToken, newToken, oldEndToken, newEndToken);
           }
         }
         // Next tokens.