rewrite issue-109934-lto-debuginfo as an ui test

tests/run-make/issue-109934-lto-debuginfo/Makefile

@@ -1,12 +0,0 @@
-# ignore-cross-compile
-include ../tools.mk
-
-# With the upgrade to LLVM 16, this was getting:
-#
-#   error: Cannot represent a difference across sections
-#
-# The error stemmed from DI function definitions under type scopes, fixed by
-# only declaring in type scope and defining the subprogram elsewhere.
-
-all:
-	$(RUSTC) lib.rs --test -C lto=fat -C debuginfo=2 -C incremental=$(TMPDIR)/inc-fat

tests/run-make/issue-109934-lto-debuginfo/lib.rs

@@ -1,9 +0,0 @@
-extern crate alloc;
-
-#[cfg(test)]
-mod tests {
-    #[test]
-    fn something_alloc() {
-        assert_eq!(Vec::<u32>::new(), Vec::<u32>::new());
-    }
-}