mesa: Extension boilerplate for NV_shader_atomic_float

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>

src/compiler/glsl/glsl_parser_extras.cpp

@@ -726,6 +726,7 @@ static const _mesa_glsl_extension _mesa_glsl_supported_extensions[] = {
    EXT(MESA_shader_integer_functions),
    EXT(NV_fragment_shader_interlock),
    EXT(NV_image_formats),
+   EXT(NV_shader_atomic_float),
 };
 
 #undef EXT

src/compiler/glsl/glsl_parser_extras.h

@@ -814,6 +814,8 @@ struct _mesa_glsl_parse_state {
    bool NV_fragment_shader_interlock_warn;
    bool NV_image_formats_enable;
    bool NV_image_formats_warn;
+   bool NV_shader_atomic_float_enable;
+   bool NV_shader_atomic_float_warn;
    /*@}*/
 
    /** Extensions supported by the OpenGL implementation. */