[libc++][NFC] Move __format/format_fwd.h to __fwd/format.h (#84336)

Author: philnik777

libcxx/include/CMakeLists.txt

@@ -380,7 +380,6 @@ set(files
   __format/format_context.h
   __format/format_error.h
   __format/format_functions.h
-  __format/format_fwd.h
   __format/format_parse_context.h
   __format/format_string.h
   __format/format_to_n_result.h
@@ -430,6 +429,7 @@ set(files
   __fwd/array.h
   __fwd/bit_reference.h
   __fwd/complex.h
+  __fwd/format.h
   __fwd/fstream.h
   __fwd/functional.h
   __fwd/ios.h

libcxx/include/__format/concepts.h

@@ -13,8 +13,8 @@
 #include <__concepts/same_as.h>
 #include <__concepts/semiregular.h>
 #include <__config>
-#include <__format/format_fwd.h>
 #include <__format/format_parse_context.h>
+#include <__fwd/format.h>
 #include <__type_traits/is_specialization.h>
 #include <__type_traits/remove_const.h>
 #include <__utility/pair.h>

libcxx/include/__format/format_arg.h

@@ -14,9 +14,9 @@
 #include <__concepts/arithmetic.h>
 #include <__config>
 #include <__format/concepts.h>
-#include <__format/format_fwd.h>
 #include <__format/format_parse_context.h>
 #include <__functional/invoke.h>
+#include <__fwd/format.h>
 #include <__memory/addressof.h>
 #include <__type_traits/conditional.h>
 #include <__utility/forward.h>

libcxx/include/__format/format_args.h

@@ -14,7 +14,7 @@
 #include <__config>
 #include <__format/format_arg.h>
 #include <__format/format_arg_store.h>
-#include <__format/format_fwd.h>
+#include <__fwd/format.h>
 #include <cstddef>
 #include <cstdint>
 

libcxx/include/__format/format_context.h

@@ -18,7 +18,7 @@
 #include <__format/format_arg_store.h>
 #include <__format/format_args.h>
 #include <__format/format_error.h>
-#include <__format/format_fwd.h>
+#include <__fwd/format.h>
 #include <__iterator/back_insert_iterator.h>
 #include <__iterator/concepts.h>
 #include <__memory/addressof.h>

libcxx/include/__format/formatter.h

@@ -12,7 +12,7 @@
 
 #include <__availability>
 #include <__config>
-#include <__format/format_fwd.h>
+#include <__fwd/format.h>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #  pragma GCC system_header

libcxx/include/__format/format_fwd.h renamed to libcxx/include/__fwd/format.h

@@ -7,8 +7,8 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef _LIBCPP___FORMAT_FORMAT_FWD_H
-#define _LIBCPP___FORMAT_FORMAT_FWD_H
+#ifndef _LIBCPP___FWD_FORMAT_H
+#define _LIBCPP___FWD_FORMAT_H
 
 #include <__availability>
 #include <__config>
@@ -36,4 +36,4 @@ struct _LIBCPP_TEMPLATE_VIS formatter;
 
 _LIBCPP_END_NAMESPACE_STD
 
-#endif // _LIBCPP___FORMAT_FORMAT_FWD_H
+#endif // _LIBCPP___FWD_FORMAT_H

libcxx/include/format

@@ -199,7 +199,6 @@ namespace std {
 #include <__format/format_context.h>
 #include <__format/format_error.h>
 #include <__format/format_functions.h>
-#include <__format/format_fwd.h>
 #include <__format/format_parse_context.h>
 #include <__format/format_string.h>
 #include <__format/format_to_n_result.h>
@@ -215,6 +214,7 @@ namespace std {
 #include <__format/range_default_formatter.h>
 #include <__format/range_formatter.h>
 #include <__format/unicode.h>
+#include <__fwd/format.h>
 #include <version>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)

libcxx/include/libcxx.imp

@@ -374,7 +374,6 @@
   { include: [ "<__format/format_context.h>", "private", "<format>", "public" ] },
   { include: [ "<__format/format_error.h>", "private", "<format>", "public" ] },
   { include: [ "<__format/format_functions.h>", "private", "<format>", "public" ] },
-  { include: [ "<__format/format_fwd.h>", "private", "<format>", "public" ] },
   { include: [ "<__format/format_parse_context.h>", "private", "<format>", "public" ] },
   { include: [ "<__format/format_string.h>", "private", "<format>", "public" ] },
   { include: [ "<__format/format_to_n_result.h>", "private", "<format>", "public" ] },
@@ -425,6 +424,7 @@
   { include: [ "<__fwd/bit_reference.h>", "private", "<bitset>", "public" ] },
   { include: [ "<__fwd/bit_reference.h>", "private", "<vector>", "public" ] },
   { include: [ "<__fwd/complex.h>", "private", "<complex>", "public" ] },
+  { include: [ "<__fwd/format.h>", "private", "<format>", "public" ] },
   { include: [ "<__fwd/fstream.h>", "private", "<iosfwd>", "public" ] },
   { include: [ "<__fwd/functional.h>", "private", "<functional>", "public" ] },
   { include: [ "<__fwd/ios.h>", "private", "<iosfwd>", "public" ] },

libcxx/include/module.modulemap

@@ -1315,7 +1315,7 @@ module std_private_format_format_functions                [system] {
   header "__format/format_functions.h"
   export std_string
 }
-module std_private_format_format_fwd                      [system] { header "__format/format_fwd.h" }
+module std_private_format_fwd                             [system] { header "__fwd/format.h" }
 module std_private_format_format_parse_context            [system] { header "__format/format_parse_context.h" }
 module std_private_format_format_string                   [system] { header "__format/format_string.h" }
 module std_private_format_format_to_n_result              [system] {