Parser gives "inconsistent indentation" errors when it cannot parse an annotation

[gvanrossum]

Example: for these three lines::

import typing
def foo(x: (int, str)) -> int:
    return int(x)

I get these errors::

x.py: In function "foo":
x.py, line 2: Parse error before (
x.py, line 2: Parse error before "int"
x.py: At top level:
x.py, line 2: Parse error before :
x.py, line 3: Inconsistent indentation
x.py, line 4: Inconsistent indentation

[gvanrossum]

This now gives error: Invalid tuple literal type which I believe is as good as it needs to be.