Make helper functions compatible with larger ToBooleanStub types.

src/type-info.cc

Index: src/type-info.cc
diff --git a/src/type-info.cc b/src/type-info.cc
index f8bfea8f187a934e95c09e74408d961f1ecc9c15..ba983d63a88a7004ef20fbdf8bd2120e7645c2d5 100644
--- a/src/type-info.cc
+++ b/src/type-info.cc
@@ -430,7 +430,7 @@ void TypeFeedbackOracle::CollectReceiverTypes(T* obj, SmallMapList* types) {
 }
 
 
-byte TypeFeedbackOracle::ToBooleanTypes(TypeFeedbackId id) {
+uint16_t TypeFeedbackOracle::ToBooleanTypes(TypeFeedbackId id) {
   Handle<Object> object = GetInfo(id);
   return object->IsCode() ? Handle<Code>::cast(object)->to_boolean_state() : 0;
 }