We also should be passing the flags around as a bitfield rather than a string,
and should not have redundant, incompatible code for converting the string to a bitfield!

Reviewed by Darin Adler.

Source/JavaScriptCore: 

* JavaScriptCore.exp:
* bytecompiler/NodesCodegen.cpp:
(JSC::RegExpNode::emitBytecode):
    - Need to parse flags string to enum.
* runtime/RegExp.cpp:
(JSC::regExpFlags):
(JSC::RegExp::RegExp):
(JSC::RegExp::create):
    - Add method to parse flags string to enum, change constructor/create args to take enum.
* runtime/RegExp.h:
(JSC::RegExp::global):
(JSC::RegExp::ignoreCase):
(JSC::RegExp::multiline):
    - Change to use new enum values.
* runtime/RegExpCache.cpp:
(JSC::RegExpCache::lookupOrCreate):
(JSC::RegExpCache::create):
* runtime/RegExpCache.h:
    - Changed to use regExpFlags enum instead of int/const UString&.
* runtime/RegExpConstructor.cpp:
(JSC::constructRegExp):
    - Add use new enum parsing, check for error.
* runtime/RegExpKey.h:
(JSC::RegExpKey::RegExpKey):
* runtime/RegExpPrototype.cpp:
(JSC::RegExpPrototype::RegExpPrototype):
    - Pass NoFlags value instead of empty string.
(JSC::regExpProtoFuncCompile):
    - Add use new enum parsing, check for error.
* runtime/StringPrototype.cpp:
(JSC::stringProtoFuncMatch):
(JSC::stringProtoFuncSearch):
    - Pass NoFlags value instead of empty string.

Source/WebCore: 

* bindings/js/SerializedScriptValue.cpp:
(WebCore::CloneDeserializer::readTerminal):
    - Need to parse flags string back to enum.

LayoutTests: 

* sputnik/Conformance/15_Native_Objects/15.10_RegExp/15.10.4/S15.10.4.1_A5_T1-expected.txt:
* sputnik/Conformance/15_Native_Objects/15.10_RegExp/15.10.4/S15.10.4.1_A5_T2-expected.txt:
* sputnik/Conformance/15_Native_Objects/15.10_RegExp/15.10.4/S15.10.4.1_A5_T3-expected.txt:
* sputnik/Conformance/15_Native_Objects/15.10_RegExp/15.10.4/S15.10.4.1_A5_T4-expected.txt:
* sputnik/Conformance/15_Native_Objects/15.10_RegExp/15.10.4/S15.10.4.1_A5_T5-expected.txt:
* sputnik/Conformance/15_Native_Objects/15.10_RegExp/15.10.4/S15.10.4.1_A5_T6-expected.txt:
* sputnik/Conformance/15_Native_Objects/15.10_RegExp/15.10.4/S15.10.4.1_A5_T7-expected.txt:
* sputnik/Conformance/15_Native_Objects/15.10_RegExp/15.10.4/S15.10.4.1_A5_T8-expected.txt:
* sputnik/Conformance/15_Native_Objects/15.10_RegExp/15.10.4/S15.10.4.1_A5_T9-expected.txt:
    - Check in passing results!



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@80667 268f45cc-cd09-0410-ab3c-d52691b4dbfc