https://bugs.webkit.org/show_bug.cgi?id=52622
        
Reviewed by Oliver Hunt.

Use cache to save function offsets and some other info.
This avoids quite a bit of work when reparsing the source.

Source/JavaScriptCore: 

* parser/ASTBuilder.h:
* parser/JSParser.cpp:
(JSC::JSParser::CachedFunctionInfo::CachedFunctionInfo):
(JSC::JSParser::CachedFunctionInfo::approximateByteSize):
(JSC::JSParser::CachedFunctionInfo::closeBraceToken):
(JSC::JSParser::Scope::copyCapturedVariablesToVector):
(JSC::JSParser::Scope::saveFunctionInfo):
(JSC::JSParser::Scope::restoreFunctionInfo):
(JSC::JSParser::findCachedFunctionInfo):
(JSC::JSParser::JSParser):
(JSC::JSParser::parseProgram):
(JSC::JSParser::parseFunctionInfo):
* parser/Lexer.h:
(JSC::Lexer::setOffset):
(JSC::Lexer::setLineNumber):
(JSC::Lexer::sourceProvider):
* parser/SourceProvider.h:
(JSC::SourceProviderCache::SourceProviderCache):
(JSC::SourceProviderCache::~SourceProviderCache):
(JSC::SourceProviderCache::byteSize):
(JSC::SourceProviderCache::add):
(JSC::SourceProviderCache::get):
(JSC::SourceProvider::SourceProvider):
(JSC::SourceProvider::~SourceProvider):
(JSC::SourceProvider::cache):
(JSC::SourceProvider::notifyCacheSizeChanged):
(JSC::SourceProvider::cacheSizeChanged):
* parser/SyntaxChecker.h:

Source/WebCore: 

* bindings/js/CachedScriptSourceProvider.h:
(WebCore::CachedScriptSourceProvider::cache):
(WebCore::CachedScriptSourceProvider::cacheSizeChanged):
(WebCore::CachedScriptSourceProvider::CachedScriptSourceProvider):
* bindings/js/ScriptSourceProvider.h:
(WebCore::ScriptSourceProvider::ScriptSourceProvider):
* loader/cache/CachedScript.cpp:
(WebCore::CachedScript::destroyDecodedData):
(WebCore::CachedScript::sourceProviderCache):
(WebCore::CachedScript::sourceProviderCacheSizeChanged):
* loader/cache/CachedScript.h:



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@76177 268f45cc-cd09-0410-ab3c-d52691b4dbfc