Fix order of output of references with invokeMethodRef.

pkg/analyzer/test/src/summary/summary_common.dart

 // Copyright (c) 2015, 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 analyzer.test.src.summary.summary_common;
 
 import 'package:analyzer/analyzer.dart';
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/src/dart/scanner/reader.dart';
@@ skipping 6886 matching lines @@
       (EntityRef r) => checkTypeRef(r, null, null, 'm',
               expectedKind: ReferenceKind.method,
               prefixExpectations: [
                 new _PrefixExpectation(ReferenceKind.classOrEnum, 'C',
                     absoluteUri: absUri('/a.dart'), relativeUri: 'a.dart'),
                 new _PrefixExpectation(ReferenceKind.prefix, 'p')
               ])
     ]);
   }
 
+  test_expr_invokeMethodRef_with_reference_arg() {
+    if (skipNonConstInitializers) {
+      return;
+    }
+    UnlinkedVariable variable = serializeVariableText('''
+f(x) => null;
+final u = null;
+final v = f(u);
+''');
+    _assertUnlinkedConst(variable.constExpr, isValidConst: false, operators: [
+      UnlinkedConstOperation.pushReference,
+      UnlinkedConstOperation.invokeMethodRef
+    ], ints: [
+      0,
+      1
+    ], referenceValidators: [
+      (EntityRef r) => checkTypeRef(r, null, null, 'u',
+          expectedKind: ReferenceKind.topLevelPropertyAccessor),
+      (EntityRef r) => checkTypeRef(r, null, null, 'f',
+          expectedKind: ReferenceKind.topLevelFunction)
+    ]);
+  }
+
   test_expr_throwException() {
     if (skipNonConstInitializers) {
       return;
     }
     UnlinkedVariable variable = serializeVariableText('''
 final v = throw 1 + 2;
 ''');
     _assertUnlinkedConst(variable.constExpr, isValidConst: false, operators: [
       UnlinkedConstOperation.pushInt,
       UnlinkedConstOperation.pushInt,
@@ skipping 2943 matching lines @@
 class _PrefixExpectation {
   final ReferenceKind kind;
   final String name;
   final String absoluteUri;
   final String relativeUri;
   final int numTypeParameters;
 
   _PrefixExpectation(this.kind, this.name,
       {this.absoluteUri, this.relativeUri, this.numTypeParameters: 0});
 }