Move zone_ to Scope

src/parsing/parser.cc

Index: src/parsing/parser.cc
diff --git a/src/parsing/parser.cc b/src/parsing/parser.cc
index 12231d13033bc710ef3eeaf8f1a764cbf488c504..852101400b27ecb90e6813c29300d9a0f7a4b49c 100644
--- a/src/parsing/parser.cc
+++ b/src/parsing/parser.cc
@@ -2274,8 +2274,8 @@ Statement* Parser::ParseHoistableDeclaration(
       !is_async && !(allow_harmony_restrictive_generators() && is_generator)) {
     SloppyBlockFunctionStatement* delegate =
         factory()->NewSloppyBlockFunctionStatement(empty, scope());
-    scope()->GetDeclarationScope()->sloppy_block_function_map()->Declare(
-        variable_name, delegate);
+    DeclarationScope* target_scope = scope()->GetDeclarationScope();
+    target_scope->DeclareSloppyBlockFunction(variable_name, delegate);
     return delegate;
   }
   return empty;