[flang-commits] [flang] [flang][docs] Update llvm-test-suite docs (PR #81596)

[Kiran Chandramohan via flang-commits]

kiranchandramohan wrote:

> ISO_Fortran_binding.h

I think the requirement in general is that the C compiler can find it.

For the gfortran tests in LLVM testsuite there is a CMake Flag to provide the location 
(-DTEST_SUITE_FORTRAN_ISO_C_HEADER_DIR).
https://github.com/llvm/llvm-test-suite/blob/main/Fortran/gfortran/README.md

https://github.com/llvm/llvm-project/pull/81596