even more test & comment updates

Author: brody2consult

crates/rustc_codegen_spirv/src/builder/builder_methods.rs

@@ -393,7 +393,9 @@ impl<'a, 'tcx> Builder<'a, 'tcx> {
                     .def(self),
                 128 => {
                     // NOTE: This is a quick solution to support the following case from issue #594:
-                    //     pub fn f() -> [u128; 2] { return [0; 2] }
+                    // pub fn init_zero_array_u128() -> [u128; 4] {
+                    //     return [0; 4];
+                    // }
                     // This may be replaced by a more general memset fill solution in the future.
                     if fill_byte != 0 {
                         self.fatal("non-zero u128 array fill not implemented yet")

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

@@ -4,12 +4,12 @@
 
 use spirv_std::spirv;
 
-pub fn init_zero_array() -> [u128; 4] {
+pub fn init_zero_array_u128() -> [u128; 4] {
     return [0; 4];
 }
 
 #[spirv(fragment)]
 pub fn main() {
     // TODO: enable the following once the "unsupported constant" of type u128 is resolved:
-    // let _ = init_zero_array();
+    // let _ = init_zero_array_u128();
 }