[interpreter] Add CreateBlockContext bytecode

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 18e2bb16ed503a0d22eb4436fb9aeaa9a306e8d5..d8756c0ebab99a6757b0e21c9ae91d3f27938b33 100644
--- a/src/interpreter/bytecode-array-builder.h
+++ b/src/interpreter/bytecode-array-builder.h
@@ -135,6 +135,10 @@ class BytecodeArrayBuilder final : public ZoneObject {
   // constant pool index |entry|.
   BytecodeArrayBuilder& CreateClosure(size_t entry, int flags);
 
+  // Create a new local context for a |scope_info| and a closure which should be
+  // in the accumulator.
+  BytecodeArrayBuilder& CreateBlockContext(Handle<ScopeInfo> scope_info);
+
   // Create a new context with size |slots|.
   BytecodeArrayBuilder& CreateFunctionContext(int slots);