Introduce FrameAndConstantPoolScope and ConstantPoolUnavailableScope.

src/macro-assembler.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 106 matching lines @@
     }
     masm_->set_has_frame(old_has_frame_);
   }
 
   // Normally we generate the leave-frame code when this object goes
   // out of scope.  Sometimes we may need to generate the code somewhere else
   // in addition.  Calling this will achieve that, but the object stays in
   // scope, the MacroAssembler is still marked as being in a frame scope, and
   // the code will be generated again when it goes out of scope.
   void GenerateLeaveFrame() {
+    ASSERT(type_ != StackFrame::MANUAL && type_ != StackFrame::NONE);
     masm_->LeaveFrame(type_);
   }
 
  private:
   MacroAssembler* masm_;
   StackFrame::Type type_;
   bool old_has_frame_;
 };
 
 
@@ skipping 68 matching lines @@
           isolate);
     }
     return ExternalReference::new_space_allocation_limit_address(isolate);
   }
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_MACRO_ASSEMBLER_H_