[interpreter] Clear pending message object on handler entry.

src/runtime/runtime.h

Index: src/runtime/runtime.h
diff --git a/src/runtime/runtime.h b/src/runtime/runtime.h
index fa5d18f7f34c13357a636eb2050175990243220e..6a7858edba371405dc8ebbbf1c6e0c1f2aea0e12 100644
--- a/src/runtime/runtime.h
+++ b/src/runtime/runtime.h
@@ -223,7 +223,10 @@ namespace internal {
   F(InterpreterTypeOf, 1, 1)              \
   F(InterpreterNewClosure, 2, 1)          \
   F(InterpreterTraceBytecodeEntry, 3, 1)  \
-  F(InterpreterTraceBytecodeExit, 3, 1)
+  F(InterpreterTraceBytecodeExit, 3, 1)   \
+  F(InterpreterClearPendingMessage, 0, 1) \
+  F(InterpreterGetPendingMessage, 0, 1)   \
+  F(InterpreterSetPendingMessage, 1, 1)
 
 #define FOR_EACH_INTRINSIC_FUNCTION(F)     \
   F(FunctionGetName, 1, 1)                 \