https://bugs.webkit.org/show_bug.cgi?id=101174

Reviewed by Geoffrey Garen.

Introduces a #define QNaN in JSValue.h, and replaces all previous uses of
std::numeric_limits<double>::quiet_NaN() with QNaN.

* API/JSValueRef.cpp:
(JSValueMakeNumber):
(JSValueToNumber):
* dfg/DFGSpeculativeJIT.cpp:
(JSC::DFG::SpeculativeJIT::compileGetByValOnFloatTypedArray):
* jit/JITPropertyAccess.cpp:
(JSC::JIT::emitFloatTypedArrayGetByVal):
* runtime/CachedTranscendentalFunction.h:
(JSC::CachedTranscendentalFunction::initialize):
* runtime/DateConstructor.cpp:
(JSC::constructDate):
* runtime/DateInstanceCache.h:
(JSC::DateInstanceData::DateInstanceData):
(JSC::DateInstanceCache::reset):
* runtime/ExceptionHelpers.cpp:
(JSC::InterruptedExecutionError::defaultValue):
(JSC::TerminatedExecutionError::defaultValue):
* runtime/JSCell.h:
(JSC::JSValue::getPrimitiveNumber):
* runtime/JSDateMath.cpp:
(JSC::parseDateFromNullTerminatedCharacters):
* runtime/JSGlobalData.cpp:
(JSC::JSGlobalData::JSGlobalData):
(JSC::JSGlobalData::resetDateCache):
* runtime/JSGlobalObjectFunctions.cpp:
(JSC::parseInt):
(JSC::jsStrDecimalLiteral):
(JSC::toDouble):
(JSC::jsToNumber):
(JSC::parseFloat):
* runtime/JSValue.cpp:
(JSC::JSValue::toNumberSlowCase):
* runtime/JSValue.h:
(JSC):
* runtime/JSValueInlineMethods.h:
(JSC::jsNaN):
* runtime/MathObject.cpp:
(JSC::mathProtoFuncMax):
(JSC::mathProtoFuncMin):



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@133493 268f45cc-cd09-0410-ab3c-d52691b4dbfc