RUF046 fix introduces a syntax error when the cast expression contains a newline

[dscorbett]

The fix for unnecessary-cast-to-int (RUF046) can crash Ruff in version 0.8.5 or change behavior when the cast expression contains a newline.

Here is a crash:

$ cat ruf046_1.py
int(1
& 1)

$ ruff check --isolated --preview --select RUF046 ruf046_1.py --diff

error: Fix introduced a syntax error. Reverting all changes.

This indicates a bug in Ruff. If you could open an issue at:

    https://github.com/astral-sh/ruff/issues/new?title=%5BFix%20error%5D

...quoting the contents of `ruf046_1.py`, the rule codes RUF046, along with the `pyproject.toml` settings and executed command, we'd be very appreciative!

Here is a syntax error:

$ cat ruf046_2.py
int(1
* 1)

$ ruff check --isolated --preview --select RUF046 ruf046_2.py --fix
Found 1 error (1 fixed, 0 remaining).

$ cat ruf046_2.py
1
* 1

$ python ruf046_2.py
  File "ruf046_2.py", line 2
    * 1
    ^^^
SyntaxError: can't use starred expression here

Here is a runtime behavior change:

$ cat ruf046_3.py
x = int(1
+ 1)
print(x)

$ python ruf046_3.py
2

$ ruff check --isolated --preview --select RUF046 ruf046_3.py --fix
Found 1 error (1 fixed, 0 remaining).

$ cat ruf046_3.py
x = 1
+ 1
print(x)

$ python ruf046_3.py
1

[charliermarsh]

Thanks!