[gi] fix handling of garrays vs c arrays

gi/pygi-argument.c

@@ -2635,8 +2635,13 @@ array_success:
         state->in_args[aux_cache->c_arg_index].v_long = length;
     }
 
-    (*arg).v_pointer = array_->data;
+    if (sequence_cache->array_type == GI_ARRAY_TYPE_C) {
+        arg->v_pointer = array_->data;
         g_array_free(array_, FALSE);
+    } else {
+        arg->v_pointer = array_;
+    }
+
     return TRUE;
 }
 

gi/pygi-cache.c

@@ -403,6 +403,8 @@ _arg_cache_new_for_in_array(PyGIFunctionCache *function_cache,
     PyGISequenceCache *seq_cache = _sequence_cache_new_from_type_info(type_info,                                                                      (function_cache->is_method ? 1: 0));
     PyGIArgCache *arg_cache = (PyGIArgCache *)seq_cache;
 
+    seq_cache->array_type = g_type_info_get_array_type(type_info);
+
     if (seq_cache->len_arg_index >= 0) {
         PyGIArgCache *aux_cache = _arg_cache_new();
         aux_cache->aux_type = PYGI_AUX_TYPE_IGNORE;

gi/pygi-cache.h

@@ -82,6 +82,7 @@ typedef struct _PyGISequenceCache
     gint len_arg_index;
     gboolean is_zero_terminated;
     gsize item_size;
+    GIArrayType array_type;
     PyGIArgCache *item_cache;
 } PyGISequenceCache;