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/9e3ec5.wgsl.expected.fxc.hlsl b/test/tint/builtins/gen/literal/textureStore/9e3ec5.wgsl.expected.fxc.hlsl
index a1dff9c..53f7cf2 100644
--- a/test/tint/builtins/gen/literal/textureStore/9e3ec5.wgsl.expected.fxc.hlsl
+++ b/test/tint/builtins/gen/literal/textureStore/9e3ec5.wgsl.expected.fxc.hlsl
@@ -1,7 +1,7 @@
 RWTexture2D<int4> arg_0 : register(u0, space1);
 
 void textureStore_9e3ec5() {
-  arg_0[(0).xx] = (0).xxxx;
+  arg_0[(1).xx] = (1).xxxx;
 }
 
 struct tint_symbol {