Get code flags from compilation info.

src/objects-inl.h

Index: src/objects-inl.h
diff --git a/src/objects-inl.h b/src/objects-inl.h
index 2dc7eb0ebd5975527e5b39e22bf4436cb5205085..6c504fb7f8eef6835329a2a6d69e5a2ffadd5da1 100644
--- a/src/objects-inl.h
+++ b/src/objects-inl.h
@@ -4869,14 +4869,12 @@ inline void Code::set_is_crankshafted(bool value) {
 
 
 inline bool Code::is_turbofanned() {
-  DCHECK(kind() == OPTIMIZED_FUNCTION || kind() == STUB);
   return IsTurbofannedField::decode(
       READ_UINT32_FIELD(this, kKindSpecificFlags1Offset));
 }
 
 
 inline void Code::set_is_turbofanned(bool value) {
-  DCHECK(kind() == OPTIMIZED_FUNCTION || kind() == STUB);
   int previous = READ_UINT32_FIELD(this, kKindSpecificFlags1Offset);
   int updated = IsTurbofannedField::update(previous, value);
   WRITE_UINT32_FIELD(this, kKindSpecificFlags1Offset, updated);