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/var/textureSampleCompare/90ae56.wgsl.expected.fxc.hlsl b/test/tint/builtins/gen/var/textureSampleCompare/90ae56.wgsl.expected.fxc.hlsl
index 048e28e..6f59515 100644
--- a/test/tint/builtins/gen/var/textureSampleCompare/90ae56.wgsl.expected.fxc.hlsl
+++ b/test/tint/builtins/gen/var/textureSampleCompare/90ae56.wgsl.expected.fxc.hlsl
@@ -2,7 +2,7 @@
 SamplerComparisonState arg_1 : register(s1, space1);
 
 void textureSampleCompare_90ae56() {
-  float2 arg_2 = (0.0f).xx;
+  float2 arg_2 = (1.0f).xx;
   uint arg_3 = 1u;
   float arg_4 = 1.0f;
   float res = arg_0.SampleCmp(arg_1, float3(arg_2, float(arg_3)), arg_4);