Auto merge of #81462 - osa1:issue75158, r=Mark-Simulacrum

Add test for #75158

This also shifts some type-size related tests into a new directory, so that we keep the number of files at the root down.

Closes #75158

src/test/ui/limits/issue-75158-64.rs

@@ -0,0 +1,16 @@
+//~ ERROR
+
+// build-fail
+// ignore-32bit
+
+struct S<T> {
+    x: [T; !0],
+}
+
+pub fn f() -> usize {
+    std::mem::size_of::<S<u8>>()
+}
+
+fn main() {
+    let x = f();
+}

src/test/ui/limits/issue-75158-64.stderr

@@ -0,0 +1,4 @@
+error: values of the type `[u8; 18446744073709551615]` are too big for the current architecture
+
+error: aborting due to previous error
+