[fullcodegen] Implement operand stack depth tracking.

src/bailout-reason.h

Index: src/bailout-reason.h
diff --git a/src/bailout-reason.h b/src/bailout-reason.h
index dc4186acdfb5af212c473813366314caed93c350..d05ac012922c42671f5e90e43aee59968c101459 100644
--- a/src/bailout-reason.h
+++ b/src/bailout-reason.h
@@ -234,6 +234,7 @@ namespace internal {
     "Unexpected number of pre-allocated property fields")                      \
   V(kUnexpectedFPCRMode, "Unexpected FPCR mode.")                              \
   V(kUnexpectedSmi, "Unexpected smi value")                                    \
+  V(kUnexpectedStackDepth, "Unexpected operand stack depth in full-codegen")   \
   V(kUnexpectedStackPointer, "The stack pointer is not the expected value")    \
   V(kUnexpectedStringType, "Unexpected string type")                           \
   V(kUnexpectedTypeForRegExpDataFixedArrayExpected,                            \