### Godot version

v4.0.stable.official [92bee43ad]

### System information

Windows 10

### Issue description

This Godot 3 line

```gdscript
assert(r.hash() == {"a":1, "b":2}.hash())
```

was converted to this:

```gdscript
assert(r.hash() == {"a":1) #,"b":2}.hash())
```

For some reason `) #` is added after `1`.

### Steps to reproduce

Just converting Godot 3 project containing the line to Godot 4.

### Minimal reproduction project

N/A
line = line.replace("get_focus_owner()", "get_viewport().gui_get_focus_owner()");
	}
	// 
	if (line.contains(".pressed")) {
		int start = line.find(".pressed");
		bool foundNextEqual = false;
		String line_to_check = line.substr(start + String(".pressed").length());
		for (int current_index = 0; line_to_check.length() > current_index; current_index++) {
			char32_t chr = line_to_check.get(current_index);
			if (chr == '\t' || chr == ' ') {
				continue;
			} else if (chr == '=') {
				foundNextEqual = true;
			} else {
				break;
			}
		}
		if (foundNextEqual) {
			line = line.substr(0, start) + ".button_pressed" + line.substr(start + String(".pressed").length());
		}
	}
	// 
	if (contains_function_call(line, "rotating")) {
		int start = line.find("rotating");
		bool foundNextEqual = false;
		String line_to_check = line.substr(start + String("rotating").length());
		String assigned_value;
		for (int current_index = 0; line_to_check.length() > current_index; current_index++) {
			char32_t chr = line_to_check.get(current_index);
			if (chr == '\t' || chr == ' ') {