Smart Mode: clamped paren resolution is too eager

[shaunlebron]

This is as expected:

((((1
    2
    3))|)
         ^ prevCursor
    4)

((((1
    2
    3))|)
 4)

But this should not be resolving the clamped parens just because the cursor moved left

((((1
    2
    3)))|
         ^ prevCursor
    4)

((((1
    2
    3)))|
 4)

[shaunlebron]

threw out this feature due to pasting issues, so this is now irrelevant: https://github.com/shaunlebron/parinfer/commit/c13c4854ae114d6c725555ebe9f0f9a7d5f64970