[turbofan] Inlining of API functions.

src/compiler/js-call-reducer.h

Index: src/compiler/js-call-reducer.h
diff --git a/src/compiler/js-call-reducer.h b/src/compiler/js-call-reducer.h
index e9a92f1a63c90ebb4be6bf9f08c0df561b19907b..61d9f342b26789e8ba382f51f7b7f4ebd1760f2f 100644
--- a/src/compiler/js-call-reducer.h
+++ b/src/compiler/js-call-reducer.h
@@ -41,6 +41,9 @@ class JSCallReducer final : public AdvancedReducer {
 
  private:
   Reduction ReduceArrayConstructor(Node* node);
+  Reduction ReduceCallApiFunction(
+      Node* node, Node* target,
+      Handle<FunctionTemplateInfo> function_template_info);
   Reduction ReduceNumberConstructor(Node* node);
   Reduction ReduceFunctionPrototypeApply(Node* node);
   Reduction ReduceFunctionPrototypeCall(Node* node);
@@ -49,6 +52,12 @@ class JSCallReducer final : public AdvancedReducer {
   Reduction ReduceJSCallConstruct(Node* node);
   Reduction ReduceJSCallFunction(Node* node);
 
+  enum HolderLookup { kHolderNotFound, kHolderIsReceiver, kHolderFound };
+
+  HolderLookup LookupHolder(Handle<JSObject> object,
+                            Handle<FunctionTemplateInfo> function_template_info,
+                            Handle<JSObject>* holder);
+
   Graph* graph() const;
   Flags flags() const { return flags_; }
   JSGraph* jsgraph() const { return jsgraph_; }