MSVC update causing compilation failures: error C2169: '__fmax': intrinsic function, cannot be defined

[andrewrk]

GitHub Actions has started rolling out new versions which contain updated MSVC, which is causing sporadic test failures:

GitHub Actions Runner Image Version: 20231024.1.0: pass
GitHub Actions Runner Image Version: 20231029.1.0: fail

Build and run behavior tests with msvc...
test-x86_64-windows-msvc.c
D:\a\zig\zig\lib\zig.h(2183): warning C4244: 'function': conversion from 'uint16_t' to 'uint8_t', possible loss of data
...
D:\a\zig\zig\lib\zig.h(2572): warning C4244: 'function': conversion from 'uint16_t' to 'uint8_t', possible loss of data
D:\a\zig\zig\lib\zig.h(3366): warning C4391: 'zig_f80 __fmax(zig_f80,zig_f80,zig_f80)': incorrect return type for intrinsic function, expected 'double'
D:\a\zig\zig\lib\zig.h(3366): warning C4392: 'zig_f80 __fmax(zig_f80,zig_f80,zig_f80)': incorrect number of arguments for intrinsic function, expected '2' arguments
test-x86_64-windows-msvc.c(53496): warning C4133: 'function': incompatible types - from 'A__9138 *' to 'A__9134 *'
test-x86_64-windows-msvc.c(53498): warning C4133: 'function': incompatible types - from 'A__9139 *' to 'A__9134 *'
test-x86_64-windows-msvc.c(65411): warning C4047: '=': 'void (__cdecl *)(void)' differs in levels of indirection from 'uint8_t (*)[4]'
test-x86_64-windows-msvc.c(123935): error C2167: '__fmax': too many actual parameters for intrinsic function
test-x86_64-windows-msvc.c(124352): error C2167: '__fmax': too many actual parameters for intrinsic function
test-x86_64-windows-msvc.c(260451): warning C4090: '=': different 'const' qualifiers
compiler_rt-x86_64-windows-msvc.c
D:\a\zig\zig\lib\zig.h(2183): warning C4244: 'function': conversion from 'uint16_t' to 'uint8_t', possible loss of data
...
D:\a\zig\zig\lib\zig.h(2572): warning C4244: 'function': conversion from 'uint16_t' to 'uint8_t', possible loss of data
D:\a\zig\zig\lib\zig.h(3366): warning C4391: 'zig_f80 __fmax(zig_f80,zig_f80,zig_f80)': incorrect return type for intrinsic function, expected 'double'
D:\a\zig\zig\lib\zig.h(3366): warning C4392: 'zig_f80 __fmax(zig_f80,zig_f80,zig_f80)': incorrect number of arguments for intrinsic function, expected '2' arguments
compiler_rt-x86_64-windows-msvc.c(490): warning C4392: 'zig_f80 __fmax(zig_f80,zig_f80,zig_f80)': incorrect number of arguments for intrinsic function, expected '2' arguments
compiler_rt-x86_64-windows-msvc.c(19292): warning C4392: 'zig_f80 __fmax(const zig_f80,const zig_f80,const zig_f80)': incorrect number of arguments for intrinsic function, expected '2' arguments
compiler_rt-x86_64-windows-msvc.c(19292): error C2169: '__fmax': intrinsic function, cannot be defined

cc @kcbanner - I'm going to disable this CI check until this is resolved.

[andrewrk]

Fix reverted in 2b58978.