MIPS64: Externalize deoptimization reasons.

src/mips64/assembler-mips64.h

Index: src/mips64/assembler-mips64.h
diff --git a/src/mips64/assembler-mips64.h b/src/mips64/assembler-mips64.h
index 969b31bb25cc59becdbc999631e6442bd741e2c3..a3664770a3f4771e444c325dd4ec8515e8ecf2c9 100644
--- a/src/mips64/assembler-mips64.h
+++ b/src/mips64/assembler-mips64.h
@@ -1055,6 +1055,10 @@ 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