Testset fixes based on Workitem 17032 (for GCC)

[ohno-fj]

I will correct the testset based on "Workitem 17032".

Specifically, I will make the following correction.
The test assumes that STDC_IEC_559_COMPLEX is always defined when complex arithmetic support is available.
However, the macro is intentionally undefined under -ffast-math because IEEE 754/ISO IEC 60559 compliance is no longer guaranteed.

Based on the above, when assuming IEEE 754 compatible complex number arithmetic, I specify the following options.

• -fno-finite-math-only
• -fno-cx-limited-range
• -fno-unsafe-math-optimizations

[ohno-fj]

@itou-fj

I have fixed the issues pointed out in the following pull requests.
#142
#141

Specifically, I made the following changes:
I move the following lines

• set_property(SOURCE 0005_0033.c APPEND PROPERTY COMPILE_OPTIONS "-std=c17") -> Workitem 17030
• set_property(SOURCE 0005_0058.c APPEND PROPERTY COMPILE_OPTIONS "-fno-finite-math-only;-fno-cx-limited-range;-fno-unsafe-math-optimizations") -> Workitem 17032

between the line

  if(TEST_SUITE_FUJITSU_ENABLE_${llvm_test_lang}_NON_OPENMP)

and the line

  endif()

below it.