Externalize deoptimization reasons.

src/ia32/assembler-ia32.h

Index: src/ia32/assembler-ia32.h
diff --git a/src/ia32/assembler-ia32.h b/src/ia32/assembler-ia32.h
index b913f7afc8e2af773ea019e5ab81ac22b0ca4e14..a5d289d97084bad51e3afebfe187bf31b0496ca4 100644
--- a/src/ia32/assembler-ia32.h
+++ b/src/ia32/assembler-ia32.h
@@ -1260,6 +1260,10 @@ class Assembler : public AssemblerBase {
   // write a comment.
   void RecordComment(const char* msg, bool force = false);
 
+  // Record a deoptimization reason that can be used by a log or cpu profiler.
+  // Use --trace-deopt to enable.
+  void RecordDeoptReason(const int reason, const int raw_position);
+
   // Writes a single byte or word of data in the code stream.  Used for
   // inline tables, e.g., jump-tables.
   void db(uint8_t data);