patch 8.0.1584: using C99 in Mac file gives compiler warning messages

Problem:    Using C99 in Mac file gives compiler warning messages.
Solution:   Add #prama's to avoid the warnings. (Kazunobu Kuriyama)

src/os_macosx.m

@@ -11,6 +11,14 @@
 * os_macosx.m -- Mac specific things for Mac OS X.
 */

/* Suppress compiler warnings to non-C89 code. */
#if defined(__clang__) && defined(__STRICT_ANSI__)
# pragma clang diagnostic push
# pragma clang diagnostic ignored "-Wc99-extensions"
# pragma clang diagnostic push
# pragma clang diagnostic ignored "-Wdeclaration-after-statement"
#endif

/* Avoid a conflict for the definition of Boolean between Mac header files and
 * X11 header files. */
#define NO_X11_INCLUDES
@@ -189,3 +197,9 @@
}

#endif /* FEAT_CLIPBOARD */

/* Lift the compiler warning suppression. */
#if defined(__clang__) && defined(__STRICT_ANSI__)
# pragma clang diagnostic pop
# pragma clang diagnostic pop
#endif

src/version.c

@@ -766,6 +766,8 @@ static char *(features[]) =

static int included_patches[] =
{   /* Add new patch number below this line */
/**/
    1584,
/**/
    1583,
/**/