nir: Move gl_shader_stage enum from mtypes.h to shader_enums.h.

I want to use this in some code that doesn't currently include mtypes.h.
It seems like a better place for it anyway.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

src/glsl/nir/nir.h

@@ -34,6 +34,7 @@
 #include "util/set.h"
 #include "util/bitset.h"
 #include "nir_types.h"
+#include "glsl/shader_enums.h"
 #include <stdio.h>
 
 #include "nir_opcodes.h"

src/glsl/shader_enums.h

@@ -26,6 +26,23 @@
 #ifndef SHADER_ENUMS_H
 #define SHADER_ENUMS_H
 
+/**
+ * Shader stages. Note that these will become 5 with tessellation.
+ *
+ * The order must match how shaders are ordered in the pipeline.
+ * The GLSL linker assumes that if i<j, then the j-th shader is
+ * executed later than the i-th shader.
+ */
+typedef enum
+{
+   MESA_SHADER_VERTEX = 0,
+   MESA_SHADER_GEOMETRY = 1,
+   MESA_SHADER_FRAGMENT = 2,
+   MESA_SHADER_COMPUTE = 3,
+} gl_shader_stage;
+
+#define MESA_SHADER_STAGES (MESA_SHADER_COMPUTE + 1)
+
 /**
  * Bitflags for system values.
  */

src/mesa/main/mtypes.h

@@ -389,25 +389,6 @@ typedef enum
                             BUFFER_BIT_COLOR6 | \
                             BUFFER_BIT_COLOR7)
 
-
-/**
- * Shader stages. Note that these will become 5 with tessellation.
- *
- * The order must match how shaders are ordered in the pipeline.
- * The GLSL linker assumes that if i<j, then the j-th shader is
- * executed later than the i-th shader.
- */
-typedef enum
-{
-   MESA_SHADER_VERTEX = 0,
-   MESA_SHADER_GEOMETRY = 1,
-   MESA_SHADER_FRAGMENT = 2,
-   MESA_SHADER_COMPUTE = 3,
-} gl_shader_stage;
-
-#define MESA_SHADER_STAGES (MESA_SHADER_COMPUTE + 1)
-
-
 /**
  * Framebuffer configuration (aka visual / pixelformat)
  * Note: some of these fields should be boolean, but it appears that