mesa: Store the performance monitor object's name.

Being able to print monitor->Name is really useful for debugging.

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

src/mesa/main/mtypes.h

@@ -1846,6 +1846,8 @@ struct gl_transform_feedback_state
  */
 struct gl_perf_monitor_object
 {
+   GLuint Name;
+
    GLboolean Active;
 
    /**

src/mesa/main/performance_monitor.c

@@ -62,6 +62,8 @@ new_performance_monitor(struct gl_context *ctx, GLuint index)
    if (m == NULL)
       return NULL;
 
+   m->Name = index;
+
    m->ActiveGroups =
       rzalloc_array(NULL, unsigned, ctx->PerfMonitor.NumGroups);