Ignore some more types that old ctest seems to fail on

Author: joshtriplett

libc-test/build.rs

@@ -4076,6 +4076,11 @@ fn test_linux(target: &str) {
             // FIXME: "'__uint128' undeclared" in C
             "__uint128" => true,
 
+            // FIXME(ctest): Failing on the 0.2 branch, likely an issue with old ctest
+            t if t.ends_with("pid_type") => true,
+            t if t.ends_with("proc_cn_mcast_op" ) => true,
+            t if t.ends_with("proc_cn_event") => true,
+
             t => {
                 if musl {
                     // LFS64 types have been removed in musl 1.2.4+