[libc++][format][test] Adds Windows support.

These tests pass on Windows without additional changes. This has been
tested in D150593.

libcxx/test/std/time/time.cal/time.cal.day/time.cal.day.nonmembers/ostream.pass.cpp

@@ -9,8 +9,6 @@
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: no-localization
 
-// TODO FMT Investigate Windows issues.
-// UNSUPPORTED msvc, target={{.+}}-windows-gnu
 // TODO FMT Evaluate gcc-12 status
 // UNSUPPORTED: gcc-12
 

libcxx/test/std/time/time.clock/time.clock.file/ostream.pass.cpp

@@ -9,8 +9,6 @@
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: no-localization
 
-// TODO FMT Investigate Windows issues.
-// UNSUPPORTED msvc, target={{.+}}-windows-gnu
 // TODO FMT It seems GCC uses too much memory in the CI and fails.
 // UNSUPPORTED: gcc-12
 

libcxx/test/std/time/time.clock/time.clock.local/ostream.pass.cpp

@@ -9,8 +9,6 @@
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: no-localization
 
-// TODO FMT Investigate Windows issues.
-// UNSUPPORTED msvc, target={{.+}}-windows-gnu
 // TODO FMT It seems GCC uses too much memory in the CI and fails.
 // UNSUPPORTED: gcc-12
 

libcxx/test/std/time/time.clock/time.clock.system/ostream.pass.cpp

@@ -9,8 +9,6 @@
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: no-localization
 
-// TODO FMT Investigate Windows issues.
-// UNSUPPORTED msvc, target={{.+}}-windows-gnu
 // TODO FMT It seems GCC uses too much memory in the CI and fails.
 // UNSUPPORTED: gcc-12
 

libcxx/test/std/time/time.duration/time.duration.nonmember/ostream.pass.cpp

@@ -9,8 +9,6 @@
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: no-localization
 
-// TODO FMT Investigate Windows issues.
-// UNSUPPORTED: msvc, target={{.+}}-windows-gnu
 // TODO FMT Evaluate gcc-12 status
 // UNSUPPORTED: gcc-12
 

libcxx/test/std/time/time.hms/time.hms.nonmembers/ostream.pass.cpp

@@ -12,9 +12,6 @@
 // TODO FMT Evaluate gcc-12 status
 // UNSUPPORTED: gcc-12
 
-// TODO FMT Investigate Windows issues.
-// UNSUPPORTED: msvc, target={{.+}}-windows-gnu
-
 // XFAIL: availability-fp_to_chars-missing
 
 // REQUIRES: locale.fr_FR.UTF-8

libcxx/test/std/utilities/format/format.functions/unicode.pass.cpp

@@ -10,9 +10,6 @@
 // This version runs the test when the platform has Unicode support.
 // UNSUPPORTED: libcpp-has-no-unicode
 
-// TODO FMT Investigate Windows issues.
-// UNSUPPORTED msvc, target={{.+}}-windows-gnu
-
 // TODO FMT This test should not require std::to_chars(floating-point)
 // XFAIL: availability-fp_to_chars-missing