[libc++] Enable -Wmissing-prototypes

[philnik777]

No description provided.

[github-actions]

⚠️ C/C++ code formatter, clang-format found issues in your code. ⚠️

You can test this locally with the following command:

git-clang-format --diff HEAD~1 HEAD --extensions ,cpp,h,c -- libcxx/include/fstream libcxx/src/charconv.cpp libcxx/src/experimental/time_zone.cpp libcxx/src/experimental/tzdb.cpp libcxx/src/filesystem/int128_builtins.cpp libcxx/src/include/from_chars_floating_point.h libcxx/src/support/win32/compiler_rt_shims.cpp libcxx/src/support/win32/locale_win32.cpp libcxxabi/src/cxa_personality.cpp libcxxabi/src/private_typeinfo.cpp libunwind/include/unwind_arm_ehabi.h libunwind/include/unwind_itanium.h libunwind/src/Unwind-EHABI.cpp libunwind/src/UnwindLevel1.c libunwind/src/Unwind_AIXExtras.cpp libunwind/src/libunwind_ext.h

View the diff from clang-format here.

diff --git a/libunwind/src/Unwind-EHABI.cpp b/libunwind/src/Unwind-EHABI.cpp
index a0f4bd3ef..ad4afee8a 100644
--- a/libunwind/src/Unwind-EHABI.cpp
+++ b/libunwind/src/Unwind-EHABI.cpp
@@ -23,8 +23,8 @@
 #include "config.h"
 #include "libunwind.h"
 #include "libunwind_ext.h"
-#include "unwind_itanium.h"
 #include "unwind.h"
+#include "unwind_itanium.h"
 
 namespace {