Everywhere: Fix order of includes and #pragma once

Userland/Libraries/LibC/bits/stdio_file_implementation.h

@@ -4,6 +4,8 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#pragma once
+
 #include <AK/Array.h>
 #include <AK/IntrusiveList.h>
 #include <AK/Types.h>
@@ -13,8 +15,6 @@
 #include <pthread.h>
 #include <sys/types.h>
 
-#pragma once
-
 struct FILE {
 public:
     FILE(int fd, int mode)

Userland/Libraries/LibC/byteswap.h

@@ -4,10 +4,10 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <sys/cdefs.h>
-
 #pragma once
 
+#include <sys/cdefs.h>
+
 __BEGIN_DECLS
 
 #define bswap_16(x) (__builtin_bswap16(x))

Userland/Libraries/LibCodeComprehension/Types.h

@@ -4,10 +4,10 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/String.h>
-
 #pragma once
 
+#include <AK/String.h>
+
 namespace CodeComprehension {
 
 enum class Language {

Userland/Libraries/LibCore/UmaskScope.h

@@ -4,11 +4,11 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#pragma once
+
 #include <sys/stat.h>
 #include <sys/types.h>
 
-#pragma once
-
 namespace Core {
 
 class UmaskScope {

Userland/Libraries/LibGPU/Config.h

@@ -4,10 +4,10 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/Types.h>
-
 #pragma once
 
+#include <AK/Types.h>
+
 namespace GPU {
 
 // FIXME: These 3 types were originally introduced in LibSoftGPU and are currently needed by the device interface.