[flang] Enable tests that have structure constructors with allocatable component

[kkwli]

No description provided.

[jeanPerier]

Thank you for the update, the list looks good to me and the test-suite passed for me.

[tarunprabhu]

LGTM. Thanks for the update.

[kkwli]

Thanks for the review.

[DavidSpickett]

I had to disable 1 of these 44df7fa.

Maybe @luporl will know what the proper fix there is?

[luporl]

I would actually be surprised if this test (pr43808) passes on other architectures.

IIUC, both -fstrict-aliasing and -fschedule-insns flags are not supported by flang:
https://github.com/llvm/llvm-project/blob/main/clang/include/clang/Driver/Options.td#L3687
https://github.com/llvm/llvm-project/blob/main/clang/include/clang/Driver/Options.td#L6177

[luporl]

#77 fixes the issue and re-enables pr43808 test.

[kkwli]

Thanks @DavidSpickett and @luporl