[C++20/DR] Fix compile error for equality in rewrite expressions

[QuellaZhang]

After the MSVC team implemented P2468R2 The Equality Operator You Are Looking For, we got an error compiling ChakraCore with /std:c++latest on MSVC, now it is fixed.

Error message:
F:\gitP\microsoft\ChakraCore\lib\Runtime\Language\SimdUtils.h(70,16): error C2666: '_SIMDValue::operator ==': overloaded functions have similar conversions
F:\gitP\microsoft\ChakraCore\lib\Runtime\Language\SimdUtils.h(48,10): note: could be 'bool _SIMDValue::operator ==(const _SIMDValue &)'
C:\Program Files (x86)\Windows Kits\10\include\10.0.22618.0\shared\guiddef.h(192,15): note: or 'bool operator ==(const GUID &,const GUID &)'
F:\gitP\microsoft\ChakraCore\lib\Runtime\Language\SimdUtils.h(48,10): note: or 'bool _SIMDValue::operator ==(const _SIMDValue &)' [synthesized expression 'y == x']
C:\Program Files (x86)\Windows Kits\10\include\10.0.22618.0\shared\guiddef.h(192,15): note: or 'bool operator ==(const GUID &,const GUID &)' [synthesized expression 'y == x']
F:\gitP\microsoft\ChakraCore\lib\Runtime\Language\SimdUtils.h(70,16): note: while trying to match the argument list '(_SIMDValue, _SIMDValue)'

[ppenzin]

Sorry for taking so long to get back to this. Thank you for the PR, I am trying to re-run pipelines to see why Test build failed.

[ppenzin]

@QuellaZhang do yo mind if I rebase it on top of latest changes? That would force-change your fork. Or can you rebase it yourself? I'm not sure why builds are not re-running (history is gone), maybe that would restart them.

Then change looks reasonable overall, though we need to try to get to the bottom of CI failures. On a similar note, can you sign contribution agreement? :)