Quick: Clean up Mir2Lir codegen.

Clean up WrapPointer()/UnwrapPointer() and OpPcRelLoad().

Change-Id: I1a91f01e1e779599c77f3f6efcac2a6ad34629cf
diff --git a/compiler/dex/quick/x86/codegen_x86.h b/compiler/dex/quick/x86/codegen_x86.h
index 20163b4..040a8c4 100644
--- a/compiler/dex/quick/x86/codegen_x86.h
+++ b/compiler/dex/quick/x86/codegen_x86.h
@@ -296,7 +296,7 @@
   LIR* OpIT(ConditionCode cond, const char* guide) OVERRIDE;
   void OpEndIT(LIR* it) OVERRIDE;
   LIR* OpMem(OpKind op, RegStorage r_base, int disp) OVERRIDE;
-  LIR* OpPcRelLoad(RegStorage reg, LIR* target) OVERRIDE;
+  void OpPcRelLoad(RegStorage reg, LIR* target) OVERRIDE;
   LIR* OpReg(OpKind op, RegStorage r_dest_src) OVERRIDE;
   void OpRegCopy(RegStorage r_dest, RegStorage r_src) OVERRIDE;
   LIR* OpRegCopyNoInsert(RegStorage r_dest, RegStorage r_src) OVERRIDE;