Fix bug in protocol_copyMethodDescriptionList() where we were calling calloc()

with a wrong element size.

protocol.c

@@ -309,7 +309,7 @@ get_method_list(Protocol *p,
 struct objc_method_description *protocol_copyMethodDescriptionList(Protocol *p,
 	BOOL isRequiredMethod, BOOL isInstanceMethod, unsigned int *count)
 {
-	if (NULL == p) { return NULL; }
+	if ((NULL == p) || (NULL == count)){ return NULL; }
 	struct objc_method_description_list *list =
 		get_method_list(p, isRequiredMethod, isInstanceMethod);
 	*count = 0;
@@ -317,9 +317,8 @@ struct objc_method_description *protocol_copyMethodDescriptionList(Protocol *p,
 
 	*count = list->count;
 	struct objc_method_description *out =
-		calloc(sizeof(struct objc_method_description_list), list->count);
+		calloc(sizeof(struct objc_method_description), list->count);
-
+	for (int i=0 ; i < (list->count) ; i++)
-	for (int i=0 ; i<list->count ; i++)
 	{
 		out[i].name = sel_registerTypedName_np(list->methods[i].name,
 		                                       list->methods[i].types);