[flang-commits] [flang] [flang] add no-cpp-dep test for AIX 64 bit (PR #74637)

[via flang-commits]

kkwli wrote:

In order to avoid duplicate another test for AIX, can you do something like:
```
RUN: %if system-aix %{ export OBJECT_MODE=64 %}
RUN: %cc -std=c99 %s -I%include %libruntime %libdecimal -lm  %if system-aix %{ -lpthread %}
RUN: rm a.out
```

https://github.com/llvm/llvm-project/pull/74637