Add missing demangling to the VM's NoSuchMethodError. Ensure the NoSuchMethorError for reflective i…

runtime/lib/mirrors_patch.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.
 
 import "dart:_internal" as _symbol_dev;
 
 /**
  * Returns a [MirrorSystem] for the current isolate.
  */
 patch MirrorSystem currentMirrorSystem() {
@@ skipping 49 matching lines @@
     // Class._constructor@xxx -> Class._constructor
     // _Class@xxx._constructor@xxx -> _Class._constructor
     // lib._S@xxx with lib._M1@xxx, lib._M2@xxx -> lib._S with lib._M1, lib._M2
     StringBuffer result = new StringBuffer();
     bool add_setter_suffix = false;
     var pos = 0;
     if (string.length >= 4 && string[3] == ':') {
       // Drop 'get:' or 'set:' prefix.
       pos = 4;
       if (string[0] == 's') {
-        add_setter_suffix;
+        add_setter_suffix = true;
       }
     }
     // Skip everything between AT and PERIOD, SPACE, COMMA or END
     bool skip = false;
     for (; pos < string.length; pos++) {
       var char = string[pos];
       if (char == '@') {
         skip = true;
       } else if (char == '.' || char == ' ' || char == ',') {
         skip = false;
@@ skipping 24 matching lines @@
 // TODO(rmacnak): Eliminate this class.
 class MirroredCompilationError {
   final String message;
 
   MirroredCompilationError(this.message);
 
   String toString() {
     return "Compile-time error during mirrored execution: <$message>";
   }
 }