### Godot version

4.0.2

### System information

Windows 11

### Issue description

Double clicking on `$MyNode` in the script editor will select the whole name including the "$".

But double clicking on `%MyNode` (unique name) will select the name but will not include the "%".

Dragging a node from the scene tree into the script editor brings up the property/method hint list, even though a "." has not been typed. Pressing enter appends "new()" even though this makes no sense as there is no period so it is just appending it directly to the node name: `$MyNodenew()`


### Steps to reproduce

Type `%MyNode` in a script and double click on it.

Type `@onready var x =` in a script, drag a node from the scene tree, then press enter.


### Minimal reproduction project

N/A
return (int)get_line_gutter_metadata(p_line, main_gutter) & MAIN_GUTTER_BREAKPOINT;
}
void CodeEdit::clear_breakpointed_lines() {
	for (int i = 0; i < get_line_count(); i++) {
		if (is_line_breakpointed(i)) {
			set_line_as_breakpoint(i, false);
		}
	}
}
PackedInt32Array CodeEdit::get_breakpointed_lines() const {
	PackedInt32Array ret;
	for (int i = 0; i < get_line_count(); i++) {
		if (is_line_breakpointed(i)) {
			ret.append(i);
		}
	}
	return ret;
}
void CodeEdit::set_line_as_bookmarked(int p_line, bool p_bookmarked) {