Avoid initing the class in more cases. Cleanup error handling a bit.
* class.c (mono_class_get_methods): Don't mono_class_init
the type.
* class.c (mono_class_get_properties): Ditto.
* class.c (mono_class_get_events): Ditto.
* icall.c (ves_icall_Type_GetMethodsByName): Ditto.
* icall.c (ves_icall_Type_GetConstructors_internal): Ditto.
* icall.c (ves_icall_Type_GetPropertiesByName): Don't
mono_class_init the types. Move error handling to a label
at the end of the function.
* icall.c (ves_icall_Type_GetEvents_internal): Ditto.