[libunwind] [libunwind] Fix compilation for the x32 ABI. (PR #116608)

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``````````bash
git-clang-format --diff c95daac4c19fe54eeeb4d0ec5ca23f2673d1de71 279b29320b45b88ca110534f08ba627fe28016c2 --extensions h -- libunwind/include/__libunwind_config.h
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View the diff from clang-format here.
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``````````diff
diff --git a/libunwind/include/__libunwind_config.h b/libunwind/include/__libunwind_config.h
index bb7fe4c83a..c03fc0b7af 100644
--- a/libunwind/include/__libunwind_config.h
+++ b/libunwind/include/__libunwind_config.h
@@ -53,9 +53,9 @@
 #    else
 #      define _LIBUNWIND_CURSOR_SIZE 66
 #    endif
-#  elif defined(__ILP32__)
-#    define _LIBUNWIND_CONTEXT_SIZE 21
-#    define _LIBUNWIND_CURSOR_SIZE 28
+#elif defined(__ILP32__)
+#define _LIBUNWIND_CONTEXT_SIZE 21
+#define _LIBUNWIND_CURSOR_SIZE 28
 #  else
 #    define _LIBUNWIND_CONTEXT_SIZE 21
 #    define _LIBUNWIND_CURSOR_SIZE 33

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https://github.com/llvm/llvm-project/pull/116608