libsysprof-analyzer: rename model to SysprofDocument

This will provide better namespacing for the objects inflated from the
document for various frame types. By creating real objects with real
properties we give ourselves quite a bit of flexibility in the data
filtering language coming forth.

src/libsysprof-analyze/tests/test-capture-model.c

@@ -6,11 +6,10 @@ int
 main (int argc,
       char *argv[])
 {
-  SysprofCaptureModel *model;
+  SysprofDocument *document;
   const char *filename;
   GError *error = NULL;
   guint n_items;
-  int fd;
 
   sysprof_clock_init ();
 
@@ -21,35 +20,26 @@ main (int argc,
     }
 
   filename = argv[1];
-  fd = open (filename, O_RDONLY|O_CLOEXEC);
 
-  if (fd == -1)
-    {
-      g_printerr ("Failed to open %s: %s\n",
-                  filename, g_strerror (errno));
-      return 1;
-    }
-
-  if (!(model = sysprof_capture_model_new_from_fd (fd, &error)))
+  if (!(document = sysprof_document_new (filename, &error)))
     {
       g_printerr ("Failed to load %s: %s\n",
                   filename, error->message);
       return 1;
     }
 
-  n_items = g_list_model_get_n_items (G_LIST_MODEL (model));
+  n_items = g_list_model_get_n_items (G_LIST_MODEL (document));
 
   g_print ("%u frames\n", n_items);
 
   for (guint i = 0; i < n_items; i++)
     {
-      SysprofCaptureFrameObject *obj = g_list_model_get_item (G_LIST_MODEL (model), i);
+      SysprofCaptureFrameObject *obj = g_list_model_get_item (G_LIST_MODEL (document), i);
 
       g_clear_object (&obj);
     }
 
-  close (fd);
-  g_clear_object (&model);
+  g_clear_object (&document);
 
   return 0;
 }