[Interpreter] Save and restore dispatch table pointer during calls.

src/interpreter/interpreter-assembler.h

Index: src/interpreter/interpreter-assembler.h
diff --git a/src/interpreter/interpreter-assembler.h b/src/interpreter/interpreter-assembler.h
index 332d6b4fe410ca20c2845f35d5d71d9ac985915e..7e84108d6bb9ecf44f48f8aa55474e40cc339cad 100644
--- a/src/interpreter/interpreter-assembler.h
+++ b/src/interpreter/interpreter-assembler.h
@@ -185,8 +185,9 @@ class InterpreterAssembler : public compiler::CodeStubAssembler {
                            BailoutReason bailout_reason);
 
   Bytecode bytecode_;
-  compiler::Node* accumulator_;
-  compiler::Node* context_;
+  CodeStubAssembler::Variable accumulator_;
+  CodeStubAssembler::Variable context_;
+  CodeStubAssembler::Variable dispatch_table_;
 
   bool disable_stack_check_across_call_;
   compiler::Node* stack_pointer_before_call_;