[libc++][test] `support.limits.general/.version.compile.pass.cpp` is malformed

[StephanTLavavej]

This file's name and contents are bogus:

llvm-project/libcxx/test/std/language.support/support.limits/support.limits.general/.version.compile.pass.cpp

Lines 9 to 24 in 966416b

	// WARNING: This test was generated by generate_feature_test_macro_components.py
	// and should not be edited manually.
	//
	// clang-format off
	// <>
	// Test the feature test macros defined by <>
	/* Constant Value
	__cpp_lib_format_uchar 202311L [C++20]
	__cpp_lib_saturation_arithmetic 202311L [C++26]
	*/
	#include <>
	#include "test_macros.h"

I suspect that lit is skipping this because it doesn't recognize the filename, which is why neither llvm/llvm-project nor microsoft/STL noticed this. However, MSVC's internal test harness is far less enlightened and tried to run everything, which brought this to my attention.

@mordante This appears to have been introduced by #72421.

[mordante]

I had a look and I guess it's due to some FTM didn't specified the affected headers so I left them empty.
(Look at what is merged in the WP is on my TODO list.)

[frederick-vs-ja]

IIUC the contents should moved into format.version.compile.pass.cpp and numeric.version.compile.pass.cpp.

[mordante]

IIUC the contents should moved into format.version.compile.pass.cpp and numeric.version.compile.pass.cpp.

That's indeed what has been done in the PR's for the Standard. The papers in question didn't mention the affected headers.