Precedence of certain operations is tampered by formatting. #623

The formatter currently removes necessary parentheses around certain expressions. Take the following code for example:

return (-X) ^ Y

...is formatted to:

return -X ^ Y

These expressions are NOT the same and this will lead to very obscure issues (-X ^ Y being parsed as -(X ^ Y) and not (-X) ^ Y seems to be not commonly known and will cause issues especially for beginners.