[JITLink] Reformat code due to an strict order of evaluation in C++17

[orion160]

current LLVM_REQUIRED_CXX_STANDARD=17

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[orion160]

It seems that there are other parts that can use the C++ 17 stablished ordering

[orion160]

CC @lhames @vgvassilev

[lhames]

Hi @orion160. Have you confirmed that MSVC handles this correctly?

If so the commit message should mention that we're removing an MSVC workaround (so that it's clear why this is only happening now).

[orion160]

@lhames What is the policy for compiler version support?