### Godot version

4.0 dev_build

### System information

Ubuntu 22.04.1

### Issue description

The "Lookup Symbol" button don't appears for custorm class names.
Related issues: #68475,  #73167.
I tried apply #68311, #69473 and #73196. It don't helps.
The `Ctrl+LMB` works right for all cases.

### Steps to reproduce

Right click to the `CustomClassA` symbol in the `custom_class_b.gd` anywhere. The `Lookup Symbol` button don't appears in the context menu.

### Minimal reproduction project

Example from  #68475.
}
			int current_line = tx->get_caret_line();
			int bpoint_idx = 0;
			if (current_line < (int)bpoints[bpoints.size() - 1]) {
				while (bpoint_idx < bpoints.size() && bpoints[bpoint_idx] <= current_line) {
					bpoint_idx++;
				}
			}
			code_editor->goto_line_centered(bpoints[bpoint_idx]);
		} break;
		case DEBUG_GOTO_PREV_BREAKPOINT: {
			PackedInt32Array bpoints = tx->get_breakpointed_lines();
			if (bpoints.size() <= 0) {
				return;
			}
			int current_line = tx->get_caret_line();
			int bpoint_idx = bpoints.size() - 1;
			if (current_line > (int)bpoints[0]) {
				while (bpoint_idx >= 0 && bpoints[bpoint_idx] >= current_line) {
					bpoint_idx--;
				}
			}
			code_editor->goto_line_centered(bpoints[bpoint_idx]);
		} break;
		case HELP_CONTEXTUAL: {
			String text = tx->get_selected_text(0);
			if (text.is_empty()) {
				text = tx->get_word_under_caret(0);
			}
			if (!text.is_empty()) {