Add `ignore-backends` annotations in failing GCC backend ui tests Follow-up of https://github.com/rust-lang/rust/pull/144125. In the GCC backend, we don't support all ui tests yet and we have a list of tests we currently ignore available [here](https://github.com/rust-lang/rustc_codegen_gcc/blob/master/tests/failing-ui-tests.txt). This PR adds the `ignore-backends` annotations to the corresponding ui tests. The second commit is a fix to compiletest, complaining about `ignore-backends`. r? ```@jieyouxu``` |
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| .. | ||
| auxiliary | ||
| apple-no-dsymutil.rs | ||
| backtrace.rs | ||
| dylib-dep.rs | ||
| line-tables-only.rs | ||
| std-backtrace.rs | ||
| synchronized-panic-handler.rs | ||
| synchronized-panic-handler.run.stderr | ||