Introduce a BreakTarget subclass of JumpTarget used to represent the...

src/codegen-ia32.h

 // Copyright 2006-2008 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 604 matching lines @@
   // Code generation state
   Scope* scope_;
   VirtualFrame* frame_;
   RegisterAllocator* allocator_;
   CodeGenState* state_;
   int break_stack_height_;
   int loop_nesting_;
 
   // Jump targets.
   // The target of the return from the function.
-  JumpTarget function_return_;
+  BreakTarget function_return_;
 
   // True if the function return is shadowed (ie, jumping to the target
   // function_return_ does not jump to the true function return, but rather
   // to some unlinking code).
   bool function_return_is_shadowed_;
 
   // True when we are in code that expects the virtual frame to be fully
   // spilled.  Some virtual frame function are disabled in DEBUG builds when
   // called from spilled code, because they do not leave the virtual frame
   // in a spilled state.
@@ skipping 13 matching lines @@
   cgen_->set_in_spilled_code(false);
   GetValue(typeof_state);
   cgen_->frame()->SpillAll();
   cgen_->set_in_spilled_code(true);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_CODEGEN_IA32_H_