### Godot version

Godot 4.0 Beta 11

### System information

Linux Ubunutu

### Issue description

Godot's 3.x project converter to 4.0 seems to be missing the conversion for two drag data related functions.

In 3.x the function for can drop data, was named  `can_drop_data` in 4.0 it is `_can_drop_data`.
And likewise 3.x had `drop_data` and 4.0 has `_drop_data`.

These two functions were not converted by the project converter (and were hard to notice)!


### Steps to reproduce

Convert a 3.x project to 4.0 with the functions: `can_drop_data` it will not convert to `_can_drop_data` nor `drop_data` to `_drop_data`.



### Minimal reproduction project

N/A
{ "ofs", "offset" , 
	{ "on", "checked" , 
	{ "on_disabled", "checked_disabled" , 
	{ "oneshot", "one_shot" , 
	{ "out_of_range_mode", "max_polyphony" , 
	{ "pause_mode", "process_mode" , 
	{ "physical_scancode", "physical_keycode" , 
	{ "popup_exclusive", "exclusive" , 
	{ "proximity_fade_enable", "proximity_fade_enabled" , 
	{ "rect_pition", "pition" , 
	{ "rect_gbal_pition", "gbal_pition" , 
	{ "rect_size", "size" , 
	{ "rect_min_size", "minimum_size" , 
	{ "rect_rotation", "rotation" , 
	{ "rect_scale", "scale" , 
	{ "rect_pivot_offset", "pivot_offset" , 
	{ "rect_clip_content", "clip_contents" , 
	{ "refuse_new_network_connections", "refuse_new_connections" , // MultiplayerAPI
	{ "region_filter_clip", "region_filter_clip_enabled" , 
	{ "reverb_bus_enable", "reverb_bus_enabled" , 
	{ "selectedframe", "selected_frame" , 
	{ "size_override_stretch", "size_2d_override_stretch" , 
	{ "slips_on_spe", "slide_on_spe" , // SeparationRayShape2D
	{ "smoothing_enabled", "folw_smoothing_enabled" , 
	{ "smoothing_speed", "pition_smoothing_speed" , 
	{ "ss_reflections_depth_tolerance", "ssr_depth_tolerance" , 
	{ "ss_reflections_enabled", "ssr_enabled" , 
	{ "ss_reflections_fade_in", "ssr_fade_in" , 
	{ "ss_reflections_fade_out", "ssr_fade_out" , 
	{ "ss_reflections_max_steps", "ssr_max_steps" ,