[turbofan] Inline %_FixedArrayGet intrinsic.

src/compiler/js-intrinsic-lowering.h

Index: src/compiler/js-intrinsic-lowering.h
diff --git a/src/compiler/js-intrinsic-lowering.h b/src/compiler/js-intrinsic-lowering.h
index 61cf9c4817dfcdbeb03d38cf81d58db55c6cdebd..816defbf58433206fb037a72304692e128020588 100644
--- a/src/compiler/js-intrinsic-lowering.h
+++ b/src/compiler/js-intrinsic-lowering.h
@@ -53,6 +53,7 @@ class JSIntrinsicLowering final : public AdvancedReducer {
   Reduction ReduceStringGetLength(Node* node);
   Reduction ReduceUnLikely(Node* node, BranchHint hint);
   Reduction ReduceValueOf(Node* node);
+  Reduction ReduceFixedArrayGet(Node* node);
   Reduction ReduceFixedArraySet(Node* node);
   Reduction ReduceGetTypeFeedbackVector(Node* node);
   Reduction ReduceGetCallerJSFunction(Node* node);
@@ -62,6 +63,8 @@ class JSIntrinsicLowering final : public AdvancedReducer {
   Reduction Change(Node* node, const Operator* op);
   Reduction Change(Node* node, const Operator* op, Node* a, Node* b);
   Reduction Change(Node* node, const Operator* op, Node* a, Node* b, Node* c);
+  Reduction Change(Node* node, const Operator* op, Node* a, Node* b, Node* c,
+                   Node* d);
   Reduction ChangeToUndefined(Node* node, Node* effect = nullptr);
 
   Graph* graph() const;