Fix for 'Assign to Local Variable' in closures.

pkg/analysis_server/test/services/correction/assist_test.dart

Index: pkg/analysis_server/test/services/correction/assist_test.dart
diff --git a/pkg/analysis_server/test/services/correction/assist_test.dart b/pkg/analysis_server/test/services/correction/assist_test.dart
index 6d01cbbcc001a55636e1deb68da0799f5efaa1eb..2885f27d20e98ec703cb312d581197b21f0c9957 100644
--- a/pkg/analysis_server/test/services/correction/assist_test.dart
+++ b/pkg/analysis_server/test/services/correction/assist_test.dart
@@ -794,6 +794,26 @@ main() {
     assertNoAssistAt('vvv =', DartAssistKind.ASSIGN_TO_LOCAL_VARIABLE);
   }
 
+  void test_assignToLocalVariable_inClosure() {
+    resolveTestUnit(r'''
+main() {
+  print(() {
+    12345;
+  });
+}
+''');
+    assertHasAssistAt(
+        '345',
+        DartAssistKind.ASSIGN_TO_LOCAL_VARIABLE,
+        '''
+main() {
+  print(() {
+    var i = 12345;
+  });
+}
+''');
+  }
+
   void test_assignToLocalVariable_invocationArgument() {
     resolveTestUnit(r'''
 main() {