Issue 21801. Index redirecting constructor invocations.

pkg/analysis_server/test/services/index/dart_index_contributor_test.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library test.services.src.index.dart_index_contributor;
 
 import 'package:analysis_server/src/services/index/index.dart';
 import 'package:analysis_server/src/services/index/index_contributor.dart';
 import 'package:analysis_server/src/services/index/index_store.dart';
 import 'package:analyzer/src/generated/ast.dart';
@@ skipping 276 matching lines @@
     // prepare elements
     ClassElement classElementB = findElement("B");
     ClassElement classElementC = findElement("C");
     // verify
     _assertRecordedRelation(
         classElementB,
         IndexConstants.IS_IMPLEMENTED_BY,
         _expectedLocation(classElementC, 'B; // 3'));
   }
 
-
   void test_isInvokedBy_FieldElement() {
     _indexTestUnit('''
 class A {
   var field;
   main() {
     this.field(); // q
     field(); // nq
   }
 }''');
     // prepare elements
@@ skipping 473 matching lines @@
     _assertRecordedRelation(
         consA,
         IndexConstants.IS_REFERENCED_BY,
         _expectedLocation(mainElement, '(); // marker-main-1', length: 0));
     _assertRecordedRelation(
         consA_named,
         IndexConstants.IS_REFERENCED_BY,
         _expectedLocation(mainElement, '.named(); // marker-main-2', length: 6));
   }
 
+  void test_isReferencedBy_ConstructorElement_redirection() {
+    _indexTestUnit('''
+class A {
+  A() : this.bar();
+  A.foo() : this(); // marker
+  A.bar();
+}
+''');
+    // prepare elements
+    var isConstructor = (node) => node is ConstructorDeclaration;
+    ConstructorElement constructorA =
+        findNodeElementAtString("A()", isConstructor);
+    ConstructorElement constructorA_foo =
+        findNodeElementAtString("A.foo()", isConstructor);
+    ConstructorElement constructorA_bar =
+        findNodeElementAtString("A.bar()", isConstructor);
+    // A()
+    _assertRecordedRelation(
+        constructorA,
+        IndexConstants.IS_REFERENCED_BY,
+        _expectedLocation(constructorA_foo, '(); // marker', length: 0));
+    // A.foo()
+    _assertRecordedRelation(
+        constructorA_bar,
+        IndexConstants.IS_REFERENCED_BY,
+        _expectedLocation(constructorA, '.bar();', length: 4));
+  }
+
   void test_isReferencedBy_ConstructorFieldInitializer() {
     _indexTestUnit('''
 class A {
   int field;
   A() : field = 5;
 }
 ''');
     // prepare elements
     ConstructorElement constructorElement =
         findNodeElementAtString("A()", (node) => node is ConstructorDeclaration);
@@ skipping 953 matching lines @@
 
   RecordedRelation(this.element, this.relationship, this.location);
 
   @override
   String toString() {
     return 'RecordedRelation(element=$element; relationship=$relationship; '
         'location=$location; flags=' '${location.isQualified ? "Q" : ""}'
         '${location.isResolved ? "R" : ""})';
   }
 }