cps-ir: Implement boolean conversion in and use it to implement '&&', '||', and '?:'.

tests/compiler/dart2js/js_backend_cps_ir_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.
 // VMOptions=-DUSE_CPS_IR=true
 
 // Test that the CPS IR code generator compiles programs and produces the
 // the expected output.
 
 import 'package:async_helper/async_helper.dart';
 import 'package:expect/expect.dart';
 import 'package:compiler/src/apiimpl.dart'
        show Compiler;
 import 'memory_compiler.dart';
 import 'package:compiler/src/js/js.dart' as js;
 import 'package:compiler/src/common.dart' show Element;
 
 import 'js_backend_cps_ir_basic.dart' as basic;
 import 'js_backend_cps_ir_literals.dart' as literals;
+import 'js_backend_cps_ir_operators.dart' as operators;
 
 const String TEST_MAIN_FILE = 'test.dart';
 
 List<TestEntry> tests = <TestEntry>[]
      ..addAll(basic.tests)
-     ..addAll(literals.tests);
+     ..addAll(literals.tests)
+     ..addAll(operators.tests);
 
 class TestEntry {
   final String source;
   final String expectation;
   const TestEntry(this.source, [this.expectation]);
 }
 
 String formatTest(Map test) {
   return test[TEST_MAIN_FILE];
 }
 
 String getCodeForMain(Compiler compiler) {
   Element mainFunction = compiler.mainFunction;
   js.Node ast = compiler.enqueuer.codegen.generatedCode[mainFunction];
   return js.prettyPrint(ast, compiler).getText();
 }
 
 main() {
   Expect.isTrue(const bool.fromEnvironment("USE_CPS_IR"));
 
   for (TestEntry test in tests) {
     Map files = {TEST_MAIN_FILE: test.source};
     asyncTest(() {
       Compiler compiler = compilerFor(files);
       Uri uri = Uri.parse('memory:$TEST_MAIN_FILE');
       return compiler.run(uri).then((_) {
         Expect.isNotNull(compiler.assembledCode);
         String expectation = test.expectation;
         if (expectation != null) {
-          Expect.equals(test.expectation, getCodeForMain(compiler));
+          String expected = test.expectation;
+          String found = getCodeForMain(compiler);
+          if (expected != found) {
+            Expect.fail('Expected:\n$expected\nbut found\n$found');
+          }
         }
       }).catchError((e) {
         print(e);
         Expect.fail('The following test failed to compile:\n'
                     '${formatTest(files)}');
       });
     });
   }
 }