adam authored Nov 01, 2019 and Marge Bot committed Feb 08, 2020

```
main = do
  print $ g [1..100] a
  where g xs x   = map (`mod` x) xs
        a :: Int = 324
```

The above program previously attributed the cost of computing 324 to a cost
centre named `(...)`, with this change the cost is attributed to `a` instead.

This change only affects simple pattern bindings (decorated variables: type
signatures, parens, ~ annotations and ! annotations).