Fix arm build.

TBR=sgjesse@chromium.org

Review URL: http://codereview.chromium.org/7308012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8538 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/arm/lithium-codegen-arm.cc

@@ -279,6 +279,7 @@ bool LCodeGen::GenerateDeferredCode() {
     int code_generated =
         masm_->InstructionsGeneratedSince(&last_jump) * Assembler::kInstrSize;
     ASSERT(Deoptimizer::patch_size() <= code_generated);
+    USE(code_generated);
   }
 
   // Force constant pool emission at the end of the deferred code to make