dart2js: remove (broken) support for nsm on native classes.

pkg/compiler/lib/src/js_emitter/old_emitter/nsm_emitter.dart

 // Copyright (c) 2013, 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.
 
 part of dart2js.js_emitter;
 
 class NsmEmitter extends CodeEmitterHelper {
   final List<Selector> trivialNsmHandlers = <Selector>[];
 
   /// If this is true then we can generate the noSuchMethod handlers at startup
@@ skipping 262 matching lines @@
            'diffEncoding': js.string('$diffEncoding')}));
       if (!minify) {
         statements.add(js.statement('var longNames = #longs.split(",")',
                 {'longs': js.string(longs.join(','))}));
       }
       statements.add(js.statement(
           'if (objectClassObject instanceof Array)'
           '  objectClassObject = objectClassObject[1];'));
     }
 
-    // TODO(9631): This is no longer valid for native methods.
-    String whatToPatch = emitter.nativeEmitter.handleNoSuchMethod ?
-                         "Object.prototype" :
-                         "objectClassObject";
-
     List<jsAst.Expression> sliceOffsetArguments =
         firstNormalSelector == 0
         ? []
         : (firstNormalSelector == shorts.length
             ? [js.number(1)]
             : [js('(j < #) ? 1 : 0', js.number(firstNormalSelector))]);
 
     var sliceOffsetParams = sliceOffsetArguments.isEmpty ? [] : ['sliceOffset'];
 
     statements.add(js.statement('''
       // If we are loading a deferred library the object class will not be in
       // the collectedClasses so objectClassObject is undefined, and we skip
       // setting up the names.
       if (objectClassObject) {
         for (var j = 0; j < shortNames.length; j++) {
           var type = 0;
           var short = shortNames[j];
           if (short[0] == "${namer.getterPrefix[0]}") type = 1;
           if (short[0] == "${namer.setterPrefix[0]}") type = 2;
           // Generate call to:
           //
           //     createInvocationMirror(String name, internalName, type,
           //         arguments, argumentNames)
           //
-          $whatToPatch[short] = (function(name, short,
-                                          type, #sliceOffsetParams) {
+          objectClassObject[short] = (function(name, short,
+                                               type, #sliceOffsetParams) {
               return function() {
                 return this.#noSuchMethodName(this,
                     #createInvocationMirror(name, short, type,
                         Array.prototype.slice.call(arguments,
                                                    #sliceOffsetParams),
                                                    []));
               }
           })(#names[j], short, type, #sliceOffsetArguments);
         }
       }''', {
           'sliceOffsetParams': sliceOffsetParams,
           'noSuchMethodName': namer.noSuchMethodName,
           'createInvocationMirror': createInvocationMirror,
           'names': minify ? 'shortNames' : 'longNames',
           'sliceOffsetArguments': sliceOffsetArguments}));
 
     return statements;
   }
 }