squash! use 2 destination buffers for indirect dispatch validation

Co-Authored-By: Erich Gubler <erichdongubler@gmail.com>

tests/tests/dispatch_workgroups_indirect.rs

@@ -95,8 +95,8 @@ async fn run_test(
         var<storage, read_write> out: array<u32, 3>;
 
         @compute @workgroup_size(1)
-        fn main(@builtin(num_workgroups) num_workgroups: vec3<u32>, @builtin(workgroup_id) workgroup_id: vec3<u32>) {
-            if (all(workgroup_id == vec3<u32>())) {
+        fn main(@builtin(num_workgroups) num_workgroups: vec3u, @builtin(workgroup_id) workgroup_id: vec3u) {
+            if (all(workgroup_id == vec3u())) {
                 out[0] = num_workgroups.x + test_offset.inner;
                 out[1] = num_workgroups.y + test_offset.inner;
                 out[2] = num_workgroups.z + test_offset.inner;

wgpu-core/src/indirect_validation.rs

@@ -73,7 +73,7 @@ impl IndirectValidation {
             @compute @workgroup_size(1)
             fn main() {{
                 let src = vec3(src[offset.inner], src[offset.inner + 1], src[offset.inner + 2]);
-                let res = select(src, vec3<u32>(), src > vec3({max_compute_workgroups_per_dimension}u));
+                let res = select(src, vec3u(), src > vec3({max_compute_workgroups_per_dimension}u));
                 dst[0] = res.x;
                 dst[1] = res.y;
                 dst[2] = res.z;