Unreviewed. VS2010 solution build fix.

* WebKit.vcxproj/WebKitExportGenerator/WebKitExports.def.in:
* JavaScriptCore.vcxproj/JavaScriptCoreExportGenerator/JavaScriptCoreExportGeneratorCommon.props:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@143970 268f45cc-cd09-0410-ab3c-d52691b4dbfc