Set bailout reason to kCodeGenerationFailed only when it is not set yet

BUG=None
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/22404007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16134 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/compiler.cc

@@ -485,7 +485,7 @@ OptimizingCompiler::Status OptimizingCompiler::GenerateAndInstallCode() {
     DisallowDeferredHandleDereference no_deferred_handle_deref;
     Handle<Code> optimized_code = chunk_->Codegen();
     if (optimized_code.is_null()) {
-      if (info()->bailout_reason() != kNoReason) {
+      if (info()->bailout_reason() == kNoReason) {
         info()->set_bailout_reason(kCodeGenerationFailed);
       }
       return AbortOptimization();