Function name variable does not need a VariableDeclaration

test/cctest/test-parsing.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1477 matching lines @@
     parser.Parse(&info);
     function = info.literal();
     CHECK_NOT_NULL(function);
     CHECK_NOT_NULL(function->body());
     CHECK_EQ(1, function->body()->length());
     i::FunctionLiteral* inner =
         function->body()->first()->AsExpressionStatement()->expression()->
         AsCall()->expression()->AsFunctionLiteral();
     i::Scope* inner_scope = inner->scope();
     i::FunctionLiteral* fun = nullptr;
-    if (inner_scope->declarations()->length() > 1) {
-      fun = inner_scope->declarations()->at(1)->AsFunctionDeclaration()->fun();
+    if (inner_scope->declarations()->length() > 0) {
+      fun = inner_scope->declarations()->at(0)->AsFunctionDeclaration()->fun();
     } else {
       // TODO(conradw): This path won't be hit until the other test cases can be
       // uncommented.
       UNREACHABLE();
       CHECK_NOT_NULL(inner->body());
       CHECK_GE(2, inner->body()->length());
       i::Expression* exp = inner->body()->at(1)->AsExpressionStatement()->
                            expression()->AsBinaryOperation()->right();
       if (exp->IsFunctionLiteral()) {
         fun = exp->AsFunctionLiteral();
@@ skipping 6631 matching lines @@
     "(a,);",
     "(a,b,c,);",
     NULL
   };
   // clang-format on
 
   static const ParserFlag always_flags[] = {kAllowHarmonyTrailingCommas};
   RunParserSyncTest(context_data, data, kError, NULL, 0, always_flags,
                     arraysize(always_flags));
 }