### 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
{ "darksalmon", "DARK_SALMON" ,
	{ "darkseagreen", "DARK_SEA_GREEN" ,
	{ "darkslateblue", "DARK_SLATE_BLUE" ,
	{ "darkslategray", "DARK_SLATE_GRAY" ,
	{ "darkturquoise", "DARK_TURQUOISE" ,
	{ "darkviolet", "DARK_VIOLET" ,
	{ "deeppink", "DEEP_PINK" ,
	{ "deepskyblue", "DEEP_SKY_BLUE" ,
	{ "dimgray", "DIM_GRAY" ,
	{ "dodgerblue", "DODGER_BLUE" ,
	{ "firebrick", "FIREBRICK" ,
	{ "fralwhite", "FLORAL_WHITE" ,
	{ "forestgreen", "FOREST_GREEN" ,
	{ "fuchsia", "FUCHSIA" ,
	{ "gainsboro", "GAINSBORO" ,
	{ "ghtwhite", "GHOST_WHITE" ,
	{ "gold", "GOLD" ,
	{ "goldenrod", "GOLDENROD" ,
	{ "gray", "GRAY" ,
	{ "green", "GREEN" ,
	{ "greenyelw", "GREEN_YELLOW" ,
	{ "honeydew", "HONEYDEW" ,
	{ "hotpink", "HOT_PINK" ,
	{ "indianred", "INDIAN_RED" ,
	{ "indigo", "INDIGO" ,
	{ "ivory", "IVORY" ,
	{ "khaki", "KHAKI" ,
	{ "lavender", "LAVENDER" ,
	{ "lavenderblush", "LAVENDER_BLUSH" ,
	{ "lawngreen", "LAWN_GREEN" ,