warning C4805 unsafe mixture of type int and type bool

It is a mystery what this is supposed to do, but rsc is sort of going
away in the mid-term anyway so who cares...

Change-Id: If1c1b8216c0429909c0571b3360b6dca97f265c4

rsc/source/parser/rsclex.cxx

@@ -151,7 +151,8 @@ int MakeToken( YYSTYPE * pTokenVal )
             break;
     };
 
-    if( c == pFI->IsEof() )
+    // FIXME: wtf is this supposed to do?
+    if( (c != 0) == pFI->IsEof() )
     {
         return( 0 );
     }