Fix: Re-name _file to file_ in SDL_LoadWAV (in macro implementation)

Author: Free-Pascal-meets-SDL-Website

units/sdl2.pas

@@ -330,9 +330,9 @@ procedure SDL_CompilerBarrier();
 
 //from "sdl_audio.h"
 
-function SDL_LoadWAV(_file: PAnsiChar; spec: PSDL_AudioSpec; audio_buf: ppcuint8; audio_len: pcuint32): PSDL_AudioSpec;
+function SDL_LoadWAV(file_: PAnsiChar; spec: PSDL_AudioSpec; audio_buf: ppcuint8; audio_len: pcuint32): PSDL_AudioSpec;
 begin
-  Result := SDL_LoadWAV_RW(SDL_RWFromFile(_file, 'rb'), 1, spec, audio_buf, audio_len);
+  Result := SDL_LoadWAV_RW(SDL_RWFromFile(file_, 'rb'), 1, spec, audio_buf, audio_len);
 end;
 
 function SDL_AUDIO_BITSIZE(x: Cardinal): Cardinal;