### 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
if (to == -1) {
		to = arguments.size();
	}
	String value;
	if (arguments.size() > 0 && from != 0 && from < to) {
		value = ", ";
	}
	for (int i = from; i < to; i++) {
		value += arguments[i];
		if (i != to - 1) {
			value += ", ";
		}
	}
	return value;
}
String ProjectConverter3To4::get_starting_space(const String &line) const {