Javascriptcore wp8 test262

Windows: This fixes the CRLF problem where certain files must remain Unix-style LF, even when on Windows.
To verify this works, make a new clone of the repository on Windows (be prepared for a 5 hour pull) and then either manually verify that the following files are in Unix LF style, or build JavaScriptCore via the Windows instructions.

* Source/JavaScriptCore/JavaScriptCore-Win81.vxcproj/LLInt/LLIntAssembly/build-LLIntAssembly.sh
* Source/JavaScriptCore/JavaScriptCore-Win81.vxcproj/LLInt/LLIntDesiredOffsets/build-LLIntDesiredOffsets.sh
* Source/JavaScriptCore/JavaScriptCore-Win81.vxcproj/build-generated-files.sh
* Source/JavaScriptCore/llint/LowLevelInterpreter.asm
* Source/JavaScriptCore/llint/LowLevelInterpreter32_64.asm
* Source/JavaScriptCore/llint/LowLevelInterpreter64.asm