glsl: add intrinsics for ARB_shader_group_vote and ARB_shader_ballot

These operations are currently implemented as IR expressions. However,
they cannot be transformed and moved in the way that other IR
expressions can because they have non-trivial interactions with
control-flow.

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

src/compiler/glsl/ir.h

@@ -1098,6 +1098,13 @@ enum ir_intrinsic_id {
    ir_intrinsic_memory_barrier_image,
    ir_intrinsic_memory_barrier_shared,
 
+   ir_intrinsic_vote_all,
+   ir_intrinsic_vote_any,
+   ir_intrinsic_vote_eq,
+   ir_intrinsic_ballot,
+   ir_intrinsic_read_invocation,
+   ir_intrinsic_read_first_invocation,
+
    ir_intrinsic_shared_load,
    ir_intrinsic_shared_store = MAKE_INTRINSIC_FOR_TYPE(store, shared),
    ir_intrinsic_shared_atomic_add = MAKE_INTRINSIC_FOR_TYPE(atomic_add, shared),