test/tint: Fix e2e test generation for vec / mat

Where the intrinsic uses the fixed-dimension form of the types.

Change-Id: I1709382f762fe7394bbd88f428f09b15a1a8a643
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/108642
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Ben Clayton <bclayton@google.com>
diff --git a/test/tint/builtins/gen/literal/textureStore/506a71.wgsl.expected.wgsl b/test/tint/builtins/gen/literal/textureStore/506a71.wgsl.expected.wgsl
index a37a117..59d771d 100644
--- a/test/tint/builtins/gen/literal/textureStore/506a71.wgsl.expected.wgsl
+++ b/test/tint/builtins/gen/literal/textureStore/506a71.wgsl.expected.wgsl
@@ -1,7 +1,7 @@
 @group(1) @binding(0) var arg_0 : texture_storage_2d<rg32uint, write>;
 
 fn textureStore_506a71() {
-  textureStore(arg_0, vec2<u32>(), vec4<u32>());
+  textureStore(arg_0, vec2<u32>(1u), vec4<u32>(1u));
 }
 
 @vertex