[compiler-rt] Only query llvm-config in the orc tests #83705
Merged
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This check for assertions is only used inside the test/orc directory, but
doing it in the top level lit config means all testsuites depend on
llvm-config being present. This is not necessarily needed e.g. when
testing just the builtins. While touching this code, simplify it a bit
by using subprocess.check_output() instead of Popen() and use a string
comparison instead of a regex match.