Remove --supermixin flag from VM.

runtime/vm/ast.h

 // 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.
 
 #ifndef VM_AST_H_
 #define VM_AST_H_
 
 #include "platform/assert.h"
 #include "vm/allocation.h"
 #include "vm/growable_array.h"
@@ skipping 1208 matching lines @@
   DECLARE_COMMON_NODE_FUNCTIONS(StoreLocalNode);
 
  private:
   const LocalVariable& local_;
   AstNode* value_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(StoreLocalNode);
 };
 
 
-
 class LoadInstanceFieldNode : public AstNode {
  public:
   LoadInstanceFieldNode(intptr_t token_pos,
                         AstNode* instance,
                         const Field& field)
       : AstNode(token_pos), instance_(instance), field_(field) {
     ASSERT(instance_ != NULL);
     ASSERT(field_.IsZoneHandle());
   }
 
@@ skipping 788 matching lines @@
   const intptr_t try_index_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(InlinedFinallyNode);
 };
 
 }  // namespace dart
 
 #undef DECLARE_COMMON_NODE_FUNCTIONS
 
 #endif  // VM_AST_H_