more test updates

Author: brody2consult

tests/compiletests/ui/lang/core/array/init_zero_array_u128.rs

@@ -1,10 +1,15 @@
+// Test creating a u128 array with zero fill.
+
 // build-pass
 
 use spirv_std::spirv;
 
-pub fn f() -> [u128; 2] {
-    return [0; 2];
+pub fn init_zero_array() -> [u128; 4] {
+    return [0; 4];
 }
 
 #[spirv(fragment)]
-pub fn main() {}
+pub fn main() {
+    // TODO: enable the following once the "unsupported constant" of type u128 is resolved:
+    // let _ = init_zero_array();
+}