Dreckly/dreckly cb958f6lang/libcxx Makefile distinfo, lang/libcxx/patches patch-src_include_to__chars__floating__point.h patch-src_filesystem_directory__iterator.cpp

libcxx: misc cleanup

- try to restore SunOS patches which were left obviously broken (untested)
- reduce compiler requirement
- delint
DeltaFile
+60-0lang/libcxx/patches/patch-src_include_to__chars__floating__point.h
+17-11lang/libcxx/Makefile
+0-28lang/libcxx/patches/patch-src_filesystem_directory__iterator.cpp
+28-0lang/libcxx/patches/patch-src_filesystem_filesystem__common.h
+21-0lang/libcxx/patches/patch-src_charconv.cpp
+4-2lang/libcxx/distinfo
+2-2lang/libcxx/patches/patch-src_support_solaris_xlocale.cpp
+1-2lang/libcxx/buildlink3.mk
+133-458 files

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