[clang] [clang][test][AIX] Set OBJECT_MODE=any for all clang test (PR #209531)

[Hubert Tong via cfe-commits]

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@@ -503,10 +492,10 @@ def user_is_root():
 # 32-bit and 64-bit objects by default, set the environment variable
 # "OBJECT_MODE" to "any" by default on AIX OS.
 
+# Tools that support OBJECT_MODE default to 32-bit on AIX. Set
+# OBJECT_MODE=any to handle both 32-bit and 64-bit objects.
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hubert-reinterpretcast wrote:

The comment above is sufficient.
```suggestion
```

https://github.com/llvm/llvm-project/pull/209531