[interpreter] Support for ES6 class literals.

src/interpreter/bytecode-array-builder.h

Index: src/interpreter/bytecode-array-builder.h
diff --git a/src/interpreter/bytecode-array-builder.h b/src/interpreter/bytecode-array-builder.h
index 3cb7945adc973ae2380cac67d54d4e2af8255798..df0ae93fefab2e41874bd907587f7d91f601ac67 100644
--- a/src/interpreter/bytecode-array-builder.h
+++ b/src/interpreter/bytecode-array-builder.h
@@ -95,6 +95,9 @@ class BytecodeArrayBuilder final : public ZoneObject, private RegisterMover {
   BytecodeArrayBuilder& LoadFalse();
   BytecodeArrayBuilder& LoadBooleanConstant(bool value);
 
+  // Load object prototype (or initial map).
+  BytecodeArrayBuilder& LoadPrototypeOrInitialMap();
+
   // Global loads to the accumulator and stores from the accumulator.
   BytecodeArrayBuilder& LoadGlobal(const Handle<String> name, int feedback_slot,
                                    LanguageMode language_mode,