Replace MSVC __debugbreak with cross-compiler DEBUG_BREAK macro. (#1540)

Minecraft.Client/Windows64/Iggy/include/rrCore.h

@@ -1619,7 +1619,7 @@ RADDEFSTART
     #define RR_BREAK() __builtin_trap()
     #define RR_CACHE_LINE_SIZE  32
   #elif defined(__RADXENON__)
-	#define RR_BREAK() __debugbreak()
+	#define RR_BREAK() DEBUG_BREAK()
     #define RR_CACHE_LINE_SIZE      128
   #elif defined(__RADANDROID__)
     #define RR_BREAK() __builtin_trap()

Minecraft.Client/Windows64/Windows64_UIController.cpp

@@ -24,7 +24,7 @@ void ConsoleUIController::init(ID3D11Device *dev, ID3D11DeviceContext *ctx, ID3D
 	{
 		app.DebugPrintf("Failed to initialise GDraw!\n");
 #ifndef _CONTENT_PACKAGE
-		__debugbreak();
+		DEBUG_BREAK();
 #endif
 		app.FatalLoadError();
 	}