Reenable ABI compatibility test for csky

Author: workingjubilee

tests/ui/abi/compatibility.rs

@@ -52,17 +52,16 @@
 //@ revisions: m68k
 //@[m68k] compile-flags: --target m68k-unknown-linux-gnu
 //@[m68k] needs-llvm-components: m68k
+//@ revisions: csky
+//@[csky] compile-flags: --target csky-unknown-linux-gnuabiv2
+//@[csky] needs-llvm-components: csky
+
 // FIXME: disabled on nvptx64 since the target ABI fails the sanity check
 // see https://github.com/rust-lang/rust/issues/117480
 /* revisions: nvptx64
   [nvptx64] compile-flags: --target nvptx64-nvidia-cuda
   [nvptx64] needs-llvm-components: nvptx
 */
-// FIXME: disabled since it fails on CI saying the csky component is missing
-/* revisions: csky
-  [csky] compile-flags: --target csky-unknown-linux-gnuabiv2
-  [csky] needs-llvm-components: csky
-*/
 #![feature(rustc_attrs, unsized_fn_params, transparent_unions)]
 #![cfg_attr(not(host), feature(no_core, lang_items), no_std, no_core)]
 #![allow(unused, improper_ctypes_definitions, internal_features)]