Propagate bailout reason to cpu profile node.

include/v8-profiler.h

Index: include/v8-profiler.h
diff --git a/include/v8-profiler.h b/include/v8-profiler.h
index cf2834130053656f5ecd7d30d08d1f0627544d40..7ae34f75a995833e1e8073723d130b998b17455e 100644
--- a/include/v8-profiler.h
+++ b/include/v8-profiler.h
@@ -87,6 +87,11 @@ class V8EXPORT CpuProfileNode {
    */
   int GetLineNumber() const;
 
+  /** Returns bailout reason for the function
+    * if the optimization was disabled for it.
+    */
+  Handle<String> GetBailoutReason() const;
+
   /**
    * Returns total (self + children) execution time of the function,
    * in milliseconds, estimated by samples count.