Use optimized code map to cache OSR code.

src/optimizing-compiler-thread.cc

Index: src/optimizing-compiler-thread.cc
diff --git a/src/optimizing-compiler-thread.cc b/src/optimizing-compiler-thread.cc
index 32a7f971401b65e7521b94edccc114bf0c8ec0d6..404105ebc673471355269e198741a7d68c695e8e 100644
--- a/src/optimizing-compiler-thread.cc
+++ b/src/optimizing-compiler-thread.cc
@@ -301,13 +301,13 @@ void OptimizingCompilerThread::Unblock() {
 
 
 RecompileJob* OptimizingCompilerThread::FindReadyOSRCandidate(
-    Handle<JSFunction> function, uint32_t osr_pc_offset) {
+    Handle<JSFunction> function, BailoutId osr_ast_id) {
   ASSERT(!IsOptimizerThread());
   for (int i = 0; i < osr_buffer_capacity_; i++) {
     RecompileJob* current = osr_buffer_[i];
     if (current != NULL &&
         current->IsWaitingForInstall() &&
-        current->info()->HasSameOsrEntry(function, osr_pc_offset)) {
+        current->info()->HasSameOsrEntry(function, osr_ast_id)) {
       osr_hits_++;
       osr_buffer_[i] = NULL;
       return current;
@@ -318,12 +318,12 @@ RecompileJob* OptimizingCompilerThread::FindReadyOSRCandidate(
 
 
 bool OptimizingCompilerThread::IsQueuedForOSR(Handle<JSFunction> function,
-                                              uint32_t osr_pc_offset) {
+                                              BailoutId osr_ast_id) {
   ASSERT(!IsOptimizerThread());
   for (int i = 0; i < osr_buffer_capacity_; i++) {
     RecompileJob* current = osr_buffer_[i];
     if (current != NULL &&
-        current->info()->HasSameOsrEntry(function, osr_pc_offset)) {
+        current->info()->HasSameOsrEntry(function, osr_ast_id)) {
       return !current->IsWaitingForInstall();
     }
   }