Scanner::LiteralBuffer usage cleanup.

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 867 matching lines @@
 void TestScanRegExp(const char* re_source, const char* expected) {
   i::Utf8ToUtf16CharacterStream stream(
        reinterpret_cast<const i::byte*>(re_source),
        static_cast<unsigned>(strlen(re_source)));
   i::HandleScope scope(CcTest::i_isolate());
   i::Scanner scanner(CcTest::i_isolate()->unicode_cache());
   scanner.Initialize(&stream);
 
   i::Token::Value start = scanner.peek();
   CHECK(start == i::Token::DIV || start == i::Token::ASSIGN_DIV);
-  CHECK(scanner.ScanRegExpPattern(start == i::Token::ASSIGN_DIV));
+  CHECK(scanner.ScanRegExpPattern());
   scanner.Next();  // Current token is now the regexp literal.
   i::Zone zone(CcTest::i_isolate()->allocator());
   i::AstValueFactory ast_value_factory(&zone,
                                        CcTest::i_isolate()->heap()->HashSeed());
   ast_value_factory.Internalize(CcTest::i_isolate());
   i::Handle<i::String> val =
       scanner.CurrentSymbol(&ast_value_factory)->string();
   i::DisallowHeapAllocation no_alloc;
   i::String::FlatContent content = val->GetFlatContent();
   CHECK(content.IsOneByte());
@@ skipping 7242 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));
 }