Check GObject signal and property naming strings
Check the string naming signals and properties are syntactically valid in calls to (for example) g_signal_connect (blah, "1invalid signal name!!")
, g_signal_connect (blah, "notify:one-colon")
, g_param_spec_int (…, "invalid property name", …)
, g_object_notify (obj, "invalid property name")
, etc.