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dart/frog/tests/leg/src/ConstantFoldingTest.dart

 // Copyright (c) 2011, 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.
 // Test constant folding on numbers.
 
 #import("compiler_helper.dart");
 
 final String NUMBER_FOLDING = """
 void main() {
   var a = 4;
@@ skipping 24 matching lines @@
   print("foo" + 1);
   print("geez" + (-1));
   print("bar" + true);
   print("toto" + false);
   print("str" + "ingie");
 }
 """;
 
 void compileAndTest(String code, String entry, RegExp regexp) {
   String generated = compile(code, entry);
-  Expect.isTrue(regexp.hasMatch(generated));
+  Expect.isTrue(regexp.hasMatch(generated),
+                '"$generated" does not match /$regexp/');
 }
 
 main() {
   compileAndTest(
-      NUMBER_FOLDING, 'main', const RegExp(@"print\$1\(\(7\)\)"));
+      NUMBER_FOLDING, 'main', const RegExp(@"print\(\(7\)\)"));
   compileAndTest(
-      NEGATIVE_NUMBER_FOLDING, 'main', const RegExp(@"print\$1\(\(1\)\)"));
+      NEGATIVE_NUMBER_FOLDING, 'main', const RegExp(@"print\(\(1\)\)"));
 
   String generated = compile(NULL_EQUALS_FOLDING, 'foo');
-  RegExp regexp = const RegExp(@'eqNull\$1\(a\)');
+  RegExp regexp = const RegExp(@'eqNull\(a\)');
   Expect.isTrue(regexp.hasMatch(generated));
 
   regexp = const RegExp(@'\(?void 0\)? === b');
   Expect.isTrue(regexp.hasMatch(generated));
 
   regexp = const RegExp(@'\(4\) === c');
   Expect.isTrue(regexp.hasMatch(generated));
 
   regexp = const RegExp("'foo' === d");
   Expect.isTrue(regexp.hasMatch(generated));
 
   generated = compile(STRING_FOLDING);
   Expect.isTrue(const RegExp("'foo1'").hasMatch(generated));
   Expect.isTrue(const RegExp("'geez-1'").hasMatch(generated));
   Expect.isTrue(const RegExp("'bartrue'").hasMatch(generated));
   Expect.isTrue(const RegExp("'totofalse'").hasMatch(generated));
   Expect.isTrue(const RegExp("'stringie'").hasMatch(generated));
 }