[interpreter] Add fast path for dynamic global lookups

src/interpreter/interpreter.h

Index: src/interpreter/interpreter.h
diff --git a/src/interpreter/interpreter.h b/src/interpreter/interpreter.h
index 1e37b11396337eea8ccaeea38383d601cf0644d4..022353037211917f04efae6fe9387bc3dd95b4d3 100644
--- a/src/interpreter/interpreter.h
+++ b/src/interpreter/interpreter.h
@@ -137,7 +137,13 @@ class Interpreter {
   void DoLdaLookupContextSlot(Runtime::FunctionId function_id,
                               InterpreterAssembler* assembler);
 
-  // Generates code to perform a lookup slot store depending on |language_mode|.
+  // Generates code to perform a lookup slot load via |function_id| that can
+  // fast path to a global load.
+  void DoLdaLookupGlobalSlot(Runtime::FunctionId function_id,
+                             InterpreterAssembler* assembler);
+
+  // Generates code to perform a lookup slot store depending on
+  // |language_mode|.
   void DoStaLookupSlot(LanguageMode language_mode,
                        InterpreterAssembler* assembler);
 
@@ -145,7 +151,9 @@ class Interpreter {
   compiler::Node* BuildLoadContextSlot(InterpreterAssembler* assembler);
 
   // Generates code to load a global.
-  compiler::Node* BuildLoadGlobal(Callable ic, InterpreterAssembler* assembler);
+  compiler::Node* BuildLoadGlobal(Callable ic, compiler::Node* context,
+                                  compiler::Node* feedback_slot,
+                                  InterpreterAssembler* assembler);
 
   // Generates code to load a named property.
   compiler::Node* BuildLoadNamedProperty(Callable ic,