[compiler-rt] [asan] Implement interception on AIX (PR #131870)

[Hubert Tong via llvm-commits]

================
@@ -439,12 +454,14 @@ INTERCEPTOR(int, swapcontext, struct ucontext_t *oucp,
 #define siglongjmp __siglongjmp14
 #endif
 
+#  if ASAN_INTERCEPT_LONGJMP
 INTERCEPTOR(void, longjmp, void *env, int val) {
   __asan_handle_no_return();
   REAL(longjmp)(env, val);
 }
+#  endif
 
-#if ASAN_INTERCEPT__LONGJMP
+#  if ASAN_INTERCEPT__LONGJMP
----------------
hubert-reinterpretcast wrote:

This looks like a formatting change that should have happened on a separate PR?

https://github.com/llvm/llvm-project/pull/131870