scalar or vector: ignore compiletest on early spv versions

Author: Firestar99

tests/compiletests/ui/arch/subgroup/subgroup_composite.rs

@@ -1,6 +1,13 @@
 // build-pass
 // compile-flags: -C target-feature=+GroupNonUniform,+GroupNonUniformBallot,+GroupNonUniformShuffle,+GroupNonUniformShuffleRelative,+ext:SPV_KHR_vulkan_memory_model
 // normalize-stderr-test "OpLine .*\n" -> ""
+// ignore-vulkan1.0
+// ignore-vulkan1.1
+// ignore-spv1.0
+// ignore-spv1.1
+// ignore-spv1.2
+// ignore-spv1.3
+// ignore-spv1.4
 
 use glam::*;
 use spirv_std::ScalarOrVectorComposite;
@@ -35,6 +42,7 @@ pub fn main(
         };
 
         let mut out = UVec3::ZERO;
+        // before spv1.5 / vulkan1.2, this id = 19 must be a constant
         out += subgroup_broadcast(my_struct, 19).b;
         out += subgroup_broadcast_first(my_struct).b;
         out += subgroup_shuffle(my_struct, 2).b;