Use GetCodeFromTargetAddress everywhere, uniformly.

src/assembler.cc

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // 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.
 //
@@ skipping 476 matching lines @@
     case EMBEDDED_OBJECT:
       Object::VerifyPointer(target_object());
       break;
     case CONSTRUCT_CALL:
     case CODE_TARGET_CONTEXT:
     case CODE_TARGET: {
       // convert inline target address to code object
       Address addr = target_address();
       ASSERT(addr != NULL);
       // Check that we can find the right code object.
-      HeapObject* code = HeapObject::FromAddress(addr - Code::kHeaderSize);
+      Code* code = Code::GetCodeFromTargetAddress(addr);
       Object* found = Heap::FindCodeObject(addr);
       ASSERT(found->IsCode());
       ASSERT(code->address() == HeapObject::cast(found)->address());
       break;
     }
     case RelocInfo::EMBEDDED_STRING:
     case RUNTIME_ENTRY:
     case JS_RETURN:
     case COMMENT:
     case POSITION:
@@ skipping 205 matching lines @@
   return ExternalReference(Redirect(FUNCTION_ADDR(Debug::Break)));
 }
 
 
 ExternalReference ExternalReference::debug_step_in_fp_address() {
   return ExternalReference(Debug::step_in_fp_addr());
 }
 #endif
 
 } }  // namespace v8::internal