JitInterface: Convert includes into forward declarations where applicable

Source/Core/Core/PowerPC/JitInterface.cpp

@@ -2,8 +2,11 @@
 // Licensed under GPLv2+
 // Refer to the license.txt file included.
 
+#include "Core/PowerPC/JitInterface.h"
+
 #include <algorithm>
 #include <cinttypes>
+#include <cstdio>
 #include <string>
 
 #ifdef _WIN32
@@ -12,10 +15,15 @@
 #include "Common/PerformanceCounter.h"
 #endif
 
+#include "Common/ChunkFile.h"
+#include "Common/CommonTypes.h"
+#include "Common/FileUtil.h"
+#include "Common/MsgHandler.h"
+
 #include "Core/Core.h"
+#include "Core/PowerPC/CPUCoreBase.h"
 #include "Core/PowerPC/CachedInterpreter/CachedInterpreter.h"
 #include "Core/PowerPC/JitCommon/JitBase.h"
-#include "Core/PowerPC/JitInterface.h"
 #include "Core/PowerPC/PPCSymbolDB.h"
 #include "Core/PowerPC/PowerPC.h"
 #include "Core/PowerPC/Profiler.h"