tests: Rename GLX_dummy directory.

Rename the GLX_dummy directory to just "dummy", since the code in it will be
used for non-GLX tests.

configure.ac

@@ -257,5 +257,5 @@ AC_CONFIG_FILES([Makefile
                  src/GLdispatch/vnd-glapi/Makefile
                  src/util/Makefile
                  tests/Makefile
-                 tests/GLX_dummy/Makefile])
+                 tests/dummy/Makefile])
 AC_OUTPUT

tests/Makefile.am

@@ -26,7 +26,7 @@
 # MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
 
 SUBDIRS = \
-	GLX_dummy
+	dummy
 
 noinst_HEADERS = test_utils.h
 

tests/glxenv.sh

@@ -1,4 +1,4 @@
 #!/bin/bash
 
 export __GLX_VENDOR_LIBRARY_NAME=dummy
-export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$TOP_BUILDDIR/tests/GLX_dummy/.libs
+export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$TOP_BUILDDIR/tests/dummy/.libs

tests/testglxmakecurrent.c

@@ -44,7 +44,7 @@
 #include "glvnd_pthread.h"
 
 // For glMakeCurrentTestResults()
-#include "GLX_dummy/GLX_dummy.h"
+#include "dummy/GLX_dummy.h"
 
 enum
 {