Refactor the convertion of a target address into a code object from the debug...

src/assembler.cc

Index: src/assembler.cc
===================================================================
--- src/assembler.cc	(revision 950)
+++ src/assembler.cc	(working copy)
@@ -450,7 +450,7 @@
            ref_encoder.NameOfAddress(*target_reference_address()),
            *target_reference_address());
   } else if (IsCodeTarget(rmode_)) {
-    Code* code = Debug::GetCodeTarget(target_address());
+    Code* code = Code::GetCodeFromTargetAddress(target_address());
     PrintF(" (%s)  (%p)", Code::Kind2String(code->kind()), target_address());
   } else if (IsPosition(rmode_)) {
     PrintF("  (%d)", data());