### 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
valid = valid && test_conversion_with_regex("Spatial.other", "Node3D.other", &rter3To4::rename_classes, "classes", reg_container);
	valid = valid && test_conversion_with_regex("\nonready", "\n@onready", &rter3To4::rename_gdscript_keywords, "gdscript keyword", reg_container);
	valid = valid && test_conversion_with_regex("onready", "@onready", &rter3To4::rename_gdscript_keywords, "gdscript keyword", reg_container);
	valid = valid && test_conversion_with_regex(" onready", " onready", &rter3To4::rename_gdscript_keywords, "gdscript keyword", reg_container);
	valid = valid && test_conversion_with_regex("\nexport", "\n@export", &rter3To4::rename_gdscript_keywords, "gdscript keyword", reg_container);
	valid = valid && test_conversion_with_regex("\texport", "\t@export", &rter3To4::rename_gdscript_keywords, "gdscript keyword", reg_container);
	valid = valid && test_conversion_with_regex("\texport_diag", "\texport_diag", &rter3To4::rename_gdscript_keywords, "gdscript keyword", reg_container);
	valid = valid && test_conversion_with_regex("export", "@export", &rter3To4::rename_gdscript_keywords, "gdscript keyword", reg_container);
	valid = valid && test_conversion_with_regex(" export", " export", &rter3To4::rename_gdscript_keywords, "gdscript keyword", reg_container);
	valid = valid && test_conversion_with_regex("tool", "@tool", &rter3To4::rename_gdscript_keywords, "gdscript keyword", reg_container);
	valid = valid && test_conversion_with_regex("\n    tool", "\n    tool", &rter3To4::rename_gdscript_keywords, "gdscript keyword", reg_container);
	valid = valid && test_conversion_with_regex("\n\ntool", "\n\n@tool", &rter3To4::rename_gdscript_keywords, "gdscript keyword", reg_container);
	valid = valid && test_conversion_with_regex("\n\nremote func", "\n\n@rpc(any_peer) func", &rter3To4::rename_gdscript_keywords, "gdscript keyword", reg_container);
	valid = valid && test_conversion_with_regex("\n\nremotesync func", "\n\n@rpc(any_peer, call_cal) func", &rter3To4::rename_gdscript_keywords, "gdscript keyword", reg_container);
	valid = valid && test_conversion_with_regex("\n\nsync func", "\n\n@rpc(any_peer, call_cal) func", &rter3To4::rename_gdscript_keywords, "gdscript keyword", reg_container);
	valid = valid && test_conversion_with_regex("\n\nslave func", "\n\n@rpc func", &rter3To4::rename_gdscript_keywords, "gdscript keyword", reg_container);
	valid = valid && test_conversion_with_regex("\n\npuppet func", "\n\n@rpc func", &rter3To4::rename_gdscript_keywords, "gdscript keyword", reg_container);
	valid = valid && test_conversion_with_regex("\n\npuppetsync func", "\n\n@rpc(call_cal) func", &rter3To4::rename_gdscript_keywords, "gdscript keyword", reg_container);
	valid = valid && test_conversion_with_regex("\n\nmaster func", "\n\nThe master and mastersync rpc behavior is not officially supported anymore. Try using another keyword or making custom gic using get_multiplayer().get_remote_sender_id()\n@rpc func", &rter3To4::rename_gdscript_keywords, "gdscript keyword", reg_container);
	valid = valid && test_conversion_with_regex("\n\nmastersync func", "\n\nThe master and mastersync rpc behavior is not officially supported anymore. Try using another keyword or making custom gic using get_multiplayer().get_remote_sender_id()\n@rpc(call_cal) func", &rter3To4::rename_gdscript_keywords, "gdscript keyword", reg_container);
	valid = valid && test_conversion_gdscript_builtin("var size : Vector2 = Vector2() setget set_function , get_function", "var size : Vector2 = Vector2() : get = get_function, set = set_function", &rter3To4::rename_gdscript_functions, "custom rename", reg_container, false);
	valid = valid && test_conversion_gdscript_builtin("var size : Vector2 = Vector2() setget set_function , ", "var size : Vector2 = Vector2() : set = set_function", &rter3To4::rename_gdscript_functions, "custom rename", reg_container, false);
	valid = valid && test_conversion_gdscript_builtin("var size : Vector2 = Vector2() setget set_function", "var size : Vector2 = Vector2() : set = set_function", &rter3To4::rename_gdscript_functions, "custom rename", reg_container, false);
	valid = valid && test_conversion_gdscript_builtin("var size : Vector2 = Vector2() setget  , get_function", "var size : Vector2 = Vector2() : get = get_function", &rter3To4::rename_gdscript_functions, "custom rename", reg_container, false);
	valid = valid && test_conversion_gdscript_builtin("get_node(@", "get_node(", &rter3To4::rename_gdscript_functions, "custom rename", reg_container, false);
	valid = valid && test_conversion_gdscript_builtin("yield(this, \"timeout\")", "await this.timeout", &rter3To4::rename_gdscript_functions, "custom rename", reg_container, false);
	valid = valid && test_conversion_gdscript_builtin("yield(this, \\\"timeout\\\")", "await this.timeout", &rter3To4::rename_gdscript_functions, "custom rename", reg_container, true);
	valid = valid && test_conversion_gdscript_builtin(" Transform.xform(Vector3(a,b,c)) ", " Transform * Vector3(a,b,c) ", &rter3To4::rename_gdscript_functions, "custom rename", reg_container, false);
	valid = valid && test_conversion_gdscript_builtin(" Transform.xform_inv(Vector3(a,b,c)) ", " Vector3(a,b,c) * Transform ", &rter3To4::rename_gdscript_functions, "custom rename", reg_container, false);
	valid = valid && test_conversion_gdscript_builtin("export(fat) var lifetime = 3.0", "export var lifetime: fat = 3.0", &rter3To4::rename_gdscript_functions, "custom rename", reg_container, false);