Fix constant evaluation in the presence of nonexistent fields.

pkg/analyzer/test/generated/resolver_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.
 
 // This code was auto-generated, is not intended to be edited, and is subject to
 // significant change. Please see the README file for more information.
 
 library engine.resolver_test;
 
 import 'dart:collection';
@@ skipping 2709 matching lines @@
         "      break;",
         "  }",
         "}"]));
     resolve(source);
     assertErrors(source, [
         CompileTimeErrorCode.INCONSISTENT_CASE_EXPRESSION_TYPES,
         CompileTimeErrorCode.INCONSISTENT_CASE_EXPRESSION_TYPES]);
     verify([source]);
   }
 
+  void test_initializerForNonExistent_const() {
+    // Check that the absence of a matching field doesn't cause a
+    // crash during constant evaluation.
+    Source source = addSource(EngineTestCase.createSource([
+        "class A {",
+        "  const A() : x = 'foo';",
+        "}",
+        "A a = const A();"]));
+    resolve(source);
+    assertErrors(source, [CompileTimeErrorCode.INITIALIZER_FOR_NON_EXISTANT_FIELD]);
+  }
+
   void test_initializerForNonExistant_initializer() {
     Source source = addSource(EngineTestCase.createSource(["class A {", "  A() : x = 0 {}", "}"]));
     resolve(source);
     assertErrors(source, [CompileTimeErrorCode.INITIALIZER_FOR_NON_EXISTANT_FIELD]);
   }
 
   void test_initializerForStaticField() {
     Source source = addSource(EngineTestCase.createSource(["class A {", "  static int x;", "  A() : x = 0 {}", "}"]));
     resolve(source);
     assertErrors(source, [CompileTimeErrorCode.INITIALIZER_FOR_STATIC_FIELD]);
@@ skipping 20646 matching lines @@
   runReflectiveTests(HintCodeTest);
   runReflectiveTests(MemberMapTest);
   runReflectiveTests(NonErrorResolverTest);
   runReflectiveTests(NonHintCodeTest);
   runReflectiveTests(SimpleResolverTest);
   runReflectiveTests(StaticTypeWarningCodeTest);
   runReflectiveTests(StaticWarningCodeTest);
   runReflectiveTests(StrictModeTest);
   runReflectiveTests(TypePropagationTest);
 }