Fix type of stat on mingw-w64 builds.

# Conflicts:
#	game/songs.cc

game/platform.hh

@@ -19,9 +19,11 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 #define _STAT(x, y) _stat(x, y)
+using STAT = struct _stat;
 #else
 #include <sys/stat.h>
 #define _STAT(x, y) stat(x, y)
+using STAT = struct stat;
 #endif
 
 struct Platform {

game/songs.cc

@@ -113,7 +113,7 @@ void Songs::LoadCache() {
 	}
 
     for(auto const& song : jsonRoot.as_array()) {
-    	struct stat buffer;
+    	STAT buffer;
     	auto songPath = song.at("TxtFile").as_string();
     	auto isSongPathInConfiguredPaths = std::find_if(
                                                         userSongs.begin(),