[TypeFeedbackVector] Combine the literals array and the feedback vector.

src/full-codegen/full-codegen.h

Index: src/full-codegen/full-codegen.h
diff --git a/src/full-codegen/full-codegen.h b/src/full-codegen/full-codegen.h
index 9a34cf93f0f2cf5f5e37b0808a052f8769527bdb..508a9eaac89d12a3f7a90a23caff6267ac5f123a 100644
--- a/src/full-codegen/full-codegen.h
+++ b/src/full-codegen/full-codegen.h
@@ -344,8 +344,7 @@ class FullCodeGenerator final : public AstVisitor<FullCodeGenerator> {
   // Returns a smi for the index into the FixedArray that backs the feedback
   // vector
   Smi* SmiFromSlot(FeedbackVectorSlot slot) const {
-    return Smi::FromInt(TypeFeedbackVector::GetIndexFromSpec(
-        literal()->feedback_vector_spec(), slot));
+    return Smi::FromInt(TypeFeedbackVector::GetIndex(slot));
   }
 
   // Record a call's return site offset, used to rebuild the frame if the