Fix leak in optimizing compiler thread.

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 fa2da9761a03bdcff6596909dac20ee0f05ebcc3..0b35648dac477ea16978dfb01e08ab6851f6368b 100644
--- a/src/optimizing-compiler-thread.cc
+++ b/src/optimizing-compiler-thread.cc
@@ -37,6 +37,17 @@
 namespace v8 {
 namespace internal {
 
+OptimizingCompilerThread::~OptimizingCompilerThread() {
+#ifdef DEBUG
+  for (int i = 0; i < osr_buffer_capacity_; i++) {
+    CHECK_EQ(NULL, osr_buffer_[i]);
+  }
+#endif
+  DeleteArray(osr_buffer_);
+  ASSERT_EQ(0, input_queue_length_);
+  DeleteArray(input_queue_);
+}
+
 
 void OptimizingCompilerThread::Run() {
 #ifdef DEBUG