Rebased localmods in libcxx to 223109.

src/locale.cpp

Index: src/locale.cpp
diff --git a/src/locale.cpp b/src/locale.cpp
index f21e35dd540a1d78667744a63cfe106c7b307724..191b2390e20e185f987e68e09e3c137a9a568cf6 100644
--- a/src/locale.cpp
+++ b/src/locale.cpp
@@ -1033,6 +1033,10 @@ ctype<char>::classic_table()  _NOEXCEPT
 // going to end up dereferencing it later...
 #elif defined(__EMSCRIPTEN__)
     return *__ctype_b_loc();
+#elif defined(_NEWLIB_VERSION) // @LOCALMOD-START
+    // Newlib has a 257-entry table in ctype_.c, where (char)0 starts at [1].
+    return _ctype_ + 1;
+    // @LOCALMOD-END
 #elif defined(_AIX)
     return (const unsigned int *)__lc_ctype_ptr->obj->mask;
 #elif defined(__ANDROID__)