External editor improvements and fixes

Notable changes:

- Now ScriptLanguages have the option to override the global external editor setting.
If `ScriptLanguage::open_in_external_editor()` returns `ERR_UNAVAILABLE` (which it does by default), then the global external editor option will be used.
- Added formatting to the external editor execution arguments. Now it's possible to write something like this: `{project} -g {file}:{line}:{col}`.
- `VisualScript::get_member_line()` now can return the line of functions (well, it returns the id of the _Function_ node of the function). I guess there is nothing else we can get a "line" from.

Fixes:

- Fixes a bug where `ScriptEditor::script_goto_method()` would not work if the script is not already open in the built-in editor.
- Fixes wrong DEFVAL for `cursor_set_column` and `cursor_set_line` in TextEdit.
- `Script::get_member_line()` now returns -1 ("found nothing") by default.

1 files changed, 2 insertions, 2 deletions

diff --git a/scene/gui/text_edit.cpp b/scene/gui/text_edit.cpp
index 80c6a23b6..8cbd6675f 100644
--- a/scene/gui/text_edit.cpp
+++ b/scene/gui/text_edit.cpp
@@ -4448,8 +4448,8 @@ void TextEdit::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_text"), &TextEdit::get_text);
 	ClassDB::bind_method(D_METHOD("get_line", "line"), &TextEdit::get_line);
 
-	ClassDB::bind_method(D_METHOD("cursor_set_column", "column", "adjust_viewport"), &TextEdit::cursor_set_column, DEFVAL(false));
-	ClassDB::bind_method(D_METHOD("cursor_set_line", "line", "adjust_viewport"), &TextEdit::cursor_set_line, DEFVAL(false));
+	ClassDB::bind_method(D_METHOD("cursor_set_column", "column", "adjust_viewport"), &TextEdit::cursor_set_column, DEFVAL(true));
+	ClassDB::bind_method(D_METHOD("cursor_set_line", "line", "adjust_viewport"), &TextEdit::cursor_set_line, DEFVAL(true));
 
 	ClassDB::bind_method(D_METHOD("cursor_get_column"), &TextEdit::cursor_get_column);
 	ClassDB::bind_method(D_METHOD("cursor_get_line"), &TextEdit::cursor_get_line);