error: SDL's allocators now call SDL_OutOfMemory on error.

This means the allocator's caller doesn't need to use SDL_OutOfMemory directly
if the allocation fails.

This applies to the usual allocators: SDL_malloc, SDL_calloc, SDL_realloc
(all of these regardless of if the app supplied a custom allocator or we're
using system malloc() or an internal copy of dlmalloc under the hood),
SDL_aligned_alloc, SDL_small_alloc, SDL_strdup, SDL_asprintf, SDL_wcsdup...
probably others. If it returns something you can pass to SDL_free, it should
work.

The caller might still need to use SDL_OutOfMemory if something that wasn't
SDL allocated the memory: operator new in C++ code, Objective-C's alloc
message, win32 GlobalAlloc, etc.

Fixes #8642.

src/haptic/SDL_haptic.c

@@ -125,7 +125,6 @@ SDL_Haptic *SDL_HapticOpen(int device_index)
     /* Create the haptic device */
     haptic = (SDL_Haptic *)SDL_malloc(sizeof(*haptic));
     if (!haptic) {
-        SDL_OutOfMemory();
         return NULL;
     }
 
@@ -297,7 +296,6 @@ SDL_Haptic *SDL_HapticOpenFromJoystick(SDL_Joystick *joystick)
         /* Create the haptic device */
         haptic = (SDL_Haptic *)SDL_malloc(sizeof(*haptic));
         if (!haptic) {
-            SDL_OutOfMemory();
             SDL_UnlockJoysticks();
             return NULL;
         }