Fix MSVC compilation

symbolgroupnode.obj:-1: error: LNK2019: unresolved external symbol
"char const * const stdWStringWCharTypeC" (?stdWStringWCharTypeC@@3PBDB)
referenced in function "public: static class std::map<class std::basic_string
<char,struct std::char_traits<char>,class std::allocator<char> >,int,
struct std::less<class std::basic_string<char,struct std::char_traits<char>,
class std::allocator<char> > >,class std::allocator<struct std::pair<class std::basic_string
<char,struct std::char_traits<char>,class std::allocator<char> > const ,int> > >
__cdecl DumpParameters::decodeFormatArgument(class std::basic_string<char,struct std::char_traits<char>,
class std::allocator<char> > const &,bool)"
(?decodeFormatArgument@DumpParameters@@SA?AV?$map@V?$basic_string@DU?$char_traits@D@std@@V?$
allocator@D@2@@std@@HU?$less@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@2@V?$
allocator@U?$pair@$$CBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@H@std@@@2@@
std@@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@3@_N@Z)

Change-Id: I64b1bc2b07df5da199a14c743f919fca4c0c22b3
Reviewed-by: Yuchen Deng <loaden@gmail.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>