Externalize deoptimization reasons.

src/mips/assembler-mips.h

Index: src/mips/assembler-mips.h
diff --git a/src/mips/assembler-mips.h b/src/mips/assembler-mips.h
index c6b12b76d7a8002477eb7791081ee861b97e4d4c..72833e66e2628cfb220be641c5a2765bee9f3d16 100644
--- a/src/mips/assembler-mips.h
+++ b/src/mips/assembler-mips.h
@@ -1016,6 +1016,11 @@ class Assembler : public AssemblerBase {
   // Use --code-comments to enable.
   void RecordComment(const char* msg);
 
+  // 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);
+
+
   static int RelocateInternalReference(byte* pc, intptr_t pc_delta);
 
   // Writes a single byte or word of data in the code stream.  Used for