EMSCRIPTEN support

[HDAKFD]

on Emscripten it seems to "reset" the counter between .cpp files.

For example i tried doing counter at index 5 on test1.cpp and test2.cpp

It started counting from start index in test2.cpp even though it had counted things already on test1.cpp, in regular clang it would remember the value between files, now it doesn't.

Any idea what could be causing this?

#	elif defined(__clang__) || defined(__EMSCRIPTEN__)
#		define FAMETA_FRIEND_INJECTION_PRAGMA_BEGIN _Pragma("GCC diagnostic push"); _Pragma("GCC diagnostic ignored \"-Wundefined-internal\"");
#		define FAMETA_FRIEND_INJECTION_PRAGMA_END   _Pragma("GCC diagnostic pop");
#	elif defined(__GNUC__)

Also tried with this tweak, changed nothing.