Revert "Make sure we do not try to run main() before the document has been fully loaded."

lib/compiler/implementation/emitter.dart

 // Copyright (c) 2012, 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.
 
 /**
  * A function element that represents a closure call. The signature is copied
  * from the given element.
  */
 class ClosureInvocationElement extends FunctionElement {
   ClosureInvocationElement(SourceString name,
@@ skipping 970 matching lines @@
     String mainCall = null;
     if (compiler.isolateLibrary != null) {
       Element isolateMain =
         compiler.isolateLibrary.find(Compiler.START_ROOT_ISOLATE);
       mainCall = buildIsolateSetup(buffer, main, isolateMain);
     } else {
       mainCall = '${namer.isolateAccess(main)}()';
     }
     buffer.add("""
 if (typeof window != 'undefined' && typeof document != 'undefined' &&
-    window.addEventListener && document.readyState != 'complete') {
+    window.addEventListener && document.readyState == 'loading') {
   window.addEventListener('DOMContentLoaded', function(e) {
     ${mainCall};
   });
 } else {
   ${mainCall};
 }
 """);
   }
 
   String assembleProgram() {
@@ skipping 53 matching lines @@
             null, sourceMap, new api.Diagnostic(-1, 'source map'));
       }
     });
     return compiler.assembledCode;
   }
 }
 
 typedef void DefineMemberFunction(String invocationName,
                                   String definition,
                                   [List<SourceMappingEntry> sourceMappings]);