Use asserts in array

codegen/array/snippets/copy_alloc

@@ -1,8 +1,6 @@
-  {ArrayType} *output = dst;
+  assert(allocator != NULL & src != NULL && dst != NULL);
 
-  if (!allocator || !src || !dst) {{
-    goto RETURN_{Tupper}_ARRAY_COPY_ALLOC;
-  }}
+  {ArrayType} *output = dst;
 
   if (src->count >= dst->capacity) {{
     u64 new_capacity = wapp_misc_utils_u64_round_up_pow2(dst->capacity * 2);