[cleanup] Remove un-scoped ParseBlock from Parser

src/preparser.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <cmath>
 
 #include "src/allocation.h"
 #include "src/base/logging.h"
 #include "src/conversions-inl.h"
 #include "src/conversions.h"
@@ skipping 459 matching lines @@
   Identifier name =
       ParseIdentifierOrStrictReservedWord(&is_strict_reserved, CHECK_OK);
   ParseClassLiteral(name, scanner()->location(), is_strict_reserved, pos,
                     CHECK_OK);
   return Statement::Default();
 }
 
 
 PreParser::Statement PreParser::ParseBlock(bool* ok) {
   // Block ::
-  //   '{' Statement* '}'
+  //   '{' StatementList '}'
 
-  // Note that a Block does not introduce a new execution scope!
-  // (ECMA-262, 3rd, 12.2)
-  //
   Expect(Token::LBRACE, CHECK_OK);
   Statement final = Statement::Default();
   while (peek() != Token::RBRACE) {
-    if (is_strict(language_mode()) || allow_harmony_sloppy()) {
-      final = ParseStatementListItem(CHECK_OK);
-    } else {
-      final = ParseStatement(CHECK_OK);
-    }
+    final = ParseStatementListItem(CHECK_OK);
   }
   Expect(Token::RBRACE, ok);
   return final;
 }
 
 
 PreParser::Statement PreParser::ParseVariableStatement(
     VariableDeclarationContext var_context,
     bool* ok) {
   // VariableStatement ::
@@ skipping 764 matching lines @@
     Expect(Token::RBRACE, CHECK_OK);
     return PreParserExpression::Default();
   }
 }
 
 #undef CHECK_OK
 
 
 }  // namespace internal
 }  // namespace v8