Revert "Run dart2js tests unmodified in browser."

dart/lib/compiler/implementation/js_backend/emitter.dart

Index: dart/lib/compiler/implementation/js_backend/emitter.dart
diff --git a/dart/lib/compiler/implementation/js_backend/emitter.dart b/dart/lib/compiler/implementation/js_backend/emitter.dart
index 4567d376996fd57482023081176fccba8761c6dd..3c146c527d2313d654345332a7cf0577e2806f2a 100644
--- a/dart/lib/compiler/implementation/js_backend/emitter.dart
+++ b/dart/lib/compiler/implementation/js_backend/emitter.dart
@@ -332,14 +332,6 @@ function(prototype, staticName, fieldName, getterName, lazyValue) {
     buffer.add("$isolate = $finishIsolateConstructorName($isolate);\n");
   }
 
-  /**
-   * Generate stubs to handle invocation of methods with optional
-   * arguments.
-   *
-   * A method like [: foo([x]) :] may be invoked by the following
-   * calls: [: foo(), foo(1), foo(x: 1) :]. See the sources of this
-   * function for detailed examples.
-   */
   void addParameterStub(FunctionElement member,
                         Selector selector,
                         DefineMemberFunction defineInstanceMember) {
@@ -1234,37 +1226,20 @@ $mainEnsureGetter
       mainCall = '${namer.isolateAccess(main)}()';
     }
     buffer.add("""
-
-//
-// BEGIN invoke [main].
-//
 if (typeof document != 'undefined' && document.readyState != 'complete') {
   document.addEventListener('readystatechange', function () {
     if (document.readyState == 'complete') {
-      if (typeof dartMainRunner == 'function') {
-        dartMainRunner(function() { ${mainCall}; });
-      } else {
-        ${mainCall};
-      }
+      ${mainCall};
     }
   }, false);
 } else {
-  if (typeof dartMainRunner == 'function') {
-    dartMainRunner(function() { ${mainCall}; });
-  } else {
-    ${mainCall};
-  }
+  ${mainCall};
 }
-//
-// END invoke [main].
-//
-
 """);
   }
 
   String assembleProgram() {
     measure(() {
-      mainBuffer.add(HOOKS_API_USAGE);
       mainBuffer.add('function ${namer.ISOLATE}() {}\n');
       mainBuffer.add('init();\n\n');
       // Shorten the code by using "$$" as temporary.
@@ -1333,14 +1308,3 @@ if (typeof document != 'undefined' && document.readyState != 'complete') {
 }
 
 typedef void DefineMemberFunction(String invocationName, CodeBuffer definition);
-
-const String HOOKS_API_USAGE = """
-// Generated by dart2js, the Dart to JavaScript compiler.
-// The code supports the following hooks:
-// dartPrint(message)   - if this function is defined it is called
-//                        instead of the Dart [print] method.
-// dartMainRunner(main) - if this function is defined, the Dart [main]
-//                        method will not be invoked directly.
-//                        Instead, a closure that will invoke [main] is
-//                        passed to [dartMainRunner].
-""";