Make Common/ mostly IWYU clean (and fix errors in rest of the project detected by this change).

Source/Core/Common/ArmCPUDetect.cpp

@@ -5,6 +5,7 @@
 #include "Common/Common.h"
 #include "Common/CPUDetect.h"
 #include "Common/FileUtil.h"
+#include "Common/StringUtil.h"
 
 // Only Linux platforms have /proc/cpuinfo
 #if !defined(BLACKBERRY) && !defined(IOS) && !defined(__SYMBIAN32__)

Source/Core/Common/Atomic.h

@@ -6,11 +6,11 @@
 
 #ifdef _WIN32
 
-#include "Common/Atomic_Win32.h"
+#include "Common/Atomic_Win32.h" // IWYU pragma: export
 
 #else
 
 // GCC-compatible compiler assumed!
-#include "Common/Atomic_GCC.h"
+#include "Common/Atomic_GCC.h" // IWYU pragma: export
 
 #endif

Source/Core/Common/Atomic_GCC.h

@@ -2,6 +2,8 @@
 // Licensed under GPLv2
 // Refer to the license.txt file included.
 
+// IWYU pragma: private, include "Common/Atomic.h"
+
 #pragma once
 
 #include "Common/Common.h"

Source/Core/Common/Atomic_Win32.h

@@ -2,6 +2,8 @@
 // Licensed under GPLv2
 // Refer to the license.txt file included.
 
+// IWYU pragma: private, include "Common/Atomic.h"
+
 #pragma once
 
 #include <intrin.h>

Source/Core/Common/BreakPoints.cpp

@@ -3,11 +3,14 @@
 // Refer to the license.txt file included.
 
 #include <sstream>
+#include <string>
+#include <vector>
 
 #include "Common/BreakPoints.h"
 #include "Common/Common.h"
 #include "Common/DebugInterface.h"
 #include "Core/PowerPC/JitCommon/JitBase.h"
+#include "Core/PowerPC/JitCommon/JitCache.h"
 
 bool BreakPoints::IsAddressBreakPoint(u32 _iAddress)
 {

Source/Core/Common/CDUtils.cpp

@@ -1,6 +1,9 @@
 // Most of the code in this file was shamelessly ripped from libcdio With minor adjustments
 
-#include <memory> // for std::unique_ptr
+#include <algorithm>
+#include <cstdlib>
+#include <string>
+#include <vector>
 
 #include "Common/CDUtils.h"
 #include "Common/Common.h"
@@ -19,6 +22,7 @@
 #include <fcntl.h>
 #include <sys/stat.h>
 #include <sys/ioctl.h>
+#include <unistd.h>
 #endif // WIN32
 
 #ifdef __linux__

Source/Core/Common/ChunkFile.h

@@ -13,12 +13,14 @@
 // - Zero backwards/forwards compatibility
 // - Serialization code for anything complex has to be manually written.
 
+#include <cstddef>
 #include <deque>
 #include <list>
 #include <map>
 #include <set>
 #include <string>
 #include <type_traits>
+#include <utility>
 #include <vector>
 
 #include "Common/Common.h"

Source/Core/Common/Common.h

@@ -168,7 +168,7 @@ enum EMUSTATE_CHANGE
 	EMUSTATE_CHANGE_STOP
 };
 
-#include "Common/CommonTypes.h"
-#include "Common/CommonFuncs.h" // NOLINT: needs to be included after CommonTypes
-#include "Common/Log.h"
-#include "Common/MsgHandler.h"
+#include "Common/CommonTypes.h" // IWYU pragma: export
+#include "Common/CommonFuncs.h" // IWYU pragma: export // NOLINT
+#include "Common/Log.h" // IWYU pragma: export
+#include "Common/MsgHandler.h" // IWYU pragma: export

Source/Core/Common/CommonPaths.h

@@ -4,9 +4,6 @@
 
 #pragma once
 
-// Make sure we pick up USER_DIR if set in config.h
-#include "Common/Common.h"
-
 // Directory seperators, do we need this?
 #define DIR_SEP "/"
 #define DIR_SEP_CHR '/'

Source/Core/Common/CommonTypes.h

@@ -9,7 +9,6 @@
 
 #pragma once
 
-#include <cstddef>
 #include <cstdint>
 
 #ifdef _WIN32

Source/Core/Common/DebugInterface.h

@@ -1,5 +1,6 @@
 #pragma once
 
+#include <cstring>
 #include <string>
 
 class DebugInterface

Source/Core/Common/FifoQueue.h

@@ -3,7 +3,11 @@
 // a simple lockless thread-safe,
 // single reader, single writer queue
 
+#include <algorithm>
+#include <cstddef>
+
 #include "Common/Atomic.h"
+#include "Common/CommonTypes.h"
 
 namespace Common
 {

Source/Core/Common/FileSearch.cpp

@@ -3,14 +3,13 @@
 // Refer to the license.txt file included.
 
 #include <algorithm>
+#include <cstring>
 
-#include "Common/Common.h"
 #include "Common/CommonPaths.h"
 #include "Common/FileSearch.h"
 #include "Common/StringUtil.h"
 
 #ifndef _WIN32
-#include <sys/types.h>
 #include <dirent.h>
 #else
 #include <windows.h>

Source/Core/Common/FileUtil.cpp

@@ -3,9 +3,16 @@
 // Refer to the license.txt file included.
 
 #include <algorithm>
+#include <cstddef>
+#include <cstdio>
+#include <cstring>
 #include <fcntl.h>
+#include <limits.h>
+#include <string>
+#include <vector>
 #include <sys/stat.h>
 
+#include "Common/Common.h"
 #include "Common/CommonPaths.h"
 #include "Common/FileUtil.h"
 
@@ -21,14 +28,14 @@
 #include <errno.h>
 #include <libgen.h>
 #include <stdlib.h>
-#include <sys/param.h>
-#include <sys/types.h>
+#include <unistd.h>
 #endif
 
 #if defined(__APPLE__)
 #include <CoreFoundation/CFBundle.h>
 #include <CoreFoundation/CFString.h>
 #include <CoreFoundation/CFURL.h>
+#include <sys/param.h>
 #endif
 
 #ifndef S_ISDIR

Source/Core/Common/FileUtil.h

@@ -4,14 +4,17 @@
 
 #pragma once
 
+#include <cstddef>
 #include <cstdio>
 #include <fstream>
 #include <string>
-#include <string.h>
 #include <vector>
 
 #include "Common/Common.h"
+
+#ifdef _WIN32
 #include "Common/StringUtil.h"
+#endif
 
 // User directory indices for GetUserPath
 enum {

Source/Core/Common/FixedSizeQueue.h

@@ -4,6 +4,8 @@
 
 #pragma once
 
+#include <cstddef>
+
 // STL-look-a-like interface, but name is mixed case to distinguish it clearly from the
 // real STL classes.
 

Source/Core/Common/GenericFPURoundMode.cpp

@@ -15,7 +15,8 @@
 // Official SVN repository and contact information can be found at
 // http://code.google.com/p/dolphin-emu/
 
-#include "FPURoundMode.h"
+#include "Common/CommonTypes.h"
+#include "Common/FPURoundMode.h"
 
 // Generic, do nothing
 namespace FPURoundMode

Source/Core/Common/Hash.h

@@ -4,6 +4,8 @@
 
 #pragma once
 
+#include <cstddef>
+
 #include "Common/Common.h"
 
 u32 HashFletcher(const u8* data_u8, size_t length);  // FAST. Length & 1 == 0.

Source/Core/Common/IniFile.cpp

@@ -6,13 +6,15 @@
 // see IniFile.h
 
 #include <algorithm>
-#include <cstdio>
-#include <cstdlib>
+#include <cstddef>
+#include <cstring>
 #include <fstream>
-#include <iostream>
+#include <map>
 #include <string>
+#include <utility>
 #include <vector>
 
+#include "Common/CommonTypes.h"
 #include "Common/FileUtil.h"
 #include "Common/IniFile.h"
 #include "Common/StringUtil.h"

Source/Core/Common/IniFile.h

@@ -4,11 +4,12 @@
 
 #pragma once
 
+#include <cstring>
 #include <map>
-#include <set>
 #include <string>
 #include <vector>
 
+#include "Common/CommonTypes.h"
 #include "Common/StringUtil.h"
 
 struct CaseInsensitiveStringCompare