Fix inclusion of GLOB_ONLYDIR

This is a GNU extension, but we don't need to implement it, as the GNU
implementation is flawed enough that callers have to manually filter it
anyways; just provide a stub definition for the constant.

We could consideer implementing this properly later. For now, fixes the
basic glob constant tests.

Author: NattyNarwhal

ext/standard/dir.stub.php

@@ -55,7 +55,7 @@
  */
 const GLOB_NOSORT = UNKNOWN;
 #endif
-#ifdef PHP_GLOB_ONLYDIR
+#if (defined(PHP_GLOB_ONLYDIR) && PHP_GLOB_ONLYDIR != 0)
 /**
  * @var int
  * @cvalue PHP_GLOB_ONLYDIR

main/php_glob.h

@@ -110,7 +110,6 @@ END_EXTERN_C()
 
 #ifndef PHP_GLOB_ONLYDIR
 #define PHP_GLOB_ONLYDIR (1<<30)
-#define PHP_GLOB_EMULATE_ONLYDIR
 #define PHP_GLOB_FLAGMASK (~PHP_GLOB_ONLYDIR)
 #else
 #define PHP_GLOB_FLAGMASK (~0)