Reviewed by Gavin Barraclough.

        Make object-literal parsing conformant with the spec.
        https://bugs.webkit.org/show_bug.cgi?id=41892

        Bring our parsing of object literals into conformance with the ES5 spec.
        Basically disallow conflicting accessor vs. normal property definitions
        The bulk of this patch is just fiddling to maintain performance.

        * parser/ASTBuilder.h:
        (JSC::ASTBuilder::createGetterOrSetterProperty):
        (JSC::ASTBuilder::createProperty):
        (JSC::ASTBuilder::getName):
        (JSC::ASTBuilder::getType):
        * parser/JSParser.cpp:
        (JSC::jsParse):
        (JSC::JSParser::JSParser):
        (JSC::JSParser::parseProperty):
        (JSC::JSParser::parseObjectLiteral):
        (JSC::JSParser::parseStrictObjectLiteral):
        * parser/JSParser.h:
        * parser/Lexer.cpp:
        (JSC::Lexer::clear):
        * parser/Lexer.h:
        (JSC::Lexer::currentOffset):
        (JSC::Lexer::setOffset):
          Add logic to allow us to roll the lexer back in the input stream.
        * parser/Nodes.h:
        (JSC::PropertyNode::):
        (JSC::PropertyNode::type):
        * parser/Parser.cpp:
        (JSC::Parser::parse):
        * parser/SourceProvider.h:
        (JSC::SourceProvider::SourceProvider):
        (JSC::SourceProvider::isValid):
        (JSC::SourceProvider::setValid):
          SourceProvider now records whether the input text
          has already been validated.
        * parser/SyntaxChecker.h:
        (JSC::SyntaxChecker::SyntaxChecker):
        (JSC::SyntaxChecker::Property::Property):
        (JSC::SyntaxChecker::Property::operator!):
        (JSC::SyntaxChecker::createProperty):
        (JSC::SyntaxChecker::createPropertyList):
        (JSC::SyntaxChecker::createGetterOrSetterProperty):
          The SyntaxChecker mode now needs to maintain a bit more information
          to ensure that we can validate object literals correctly.
2010-07-08  Oliver Hunt  <oliver@apple.com>

        Reviewed by Gavin Barraclough.

        Need a short description and bug URL (OOPS!)

        * fast/js/object-literal-syntax-expected.txt: Added.
        * fast/js/object-literal-syntax.html: Added.
        * fast/js/parser-syntax-check-expected.txt:
        * fast/js/script-tests/object-literal-syntax.js: Added.
        * fast/js/script-tests/parser-syntax-check.js:
        * ietestcenter/Javascript/11.1.5_4-4-b-1-expected.txt:
        * ietestcenter/Javascript/11.1.5_4-4-b-2-expected.txt:
        * ietestcenter/Javascript/11.1.5_4-4-c-1-expected.txt:
        * ietestcenter/Javascript/11.1.5_4-4-c-2-expected.txt:
        * ietestcenter/Javascript/11.1.5_4-4-d-1-expected.txt:
        * ietestcenter/Javascript/11.1.5_4-4-d-2-expected.txt:
        * ietestcenter/Javascript/11.1.5_4-4-d-3-expected.txt:
        * ietestcenter/Javascript/11.1.5_4-4-d-4-expected.txt:
        * platform/chromium/test_expectations.txt:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@62848 268f45cc-cd09-0410-ab3c-d52691b4dbfc