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

src/codegen-arm.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 409 matching lines @@
   bool TryGenerateFastCaseSwitchStatement(SwitchStatement* node);
 
 
   // Methods used to indicate which source code is generated for. Source
   // positions are collected by the assembler and emitted with the relocation
   // information.
   void CodeForFunctionPosition(FunctionLiteral* fun);
   void CodeForStatementPosition(Node* node);
   void CodeForSourcePosition(int pos);
 
-  // Is the given jump target the actual (ie, non-shadowed) function return
-  // target?
-  bool IsActualFunctionReturn(JumpTarget* target);
-
 #ifdef DEBUG
   // True if the registers are valid for entry to a block.
   bool HasValidEntryRegisters();
 #endif
 
   bool is_eval_;  // Tells whether code is generated for eval.
 
   Handle<Script> script_;
   List<DeferredCode*> deferred_;
 
   // Assembler
   MacroAssembler* masm_;  // to generate code
 
   // Code generation state
   Scope* scope_;
   VirtualFrame* frame_;
   RegisterAllocator* allocator_;
   Condition cc_reg_;
   CodeGenState* state_;
   int break_stack_height_;
 
   // Jump targets
-  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 12 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_ARM_H_