Ryan Scott authored Apr 12, 2020 and Marge Bot committed Apr 14, 2020

This requires bumping the `exceptions` and `text` submodules to bring
in commits that bump their respective upper version bounds on
`template-haskell`.

Fixes #17645. Fixes #17696.

Note that the new `text` commit includes a fair number of additions
to the Haddocks in that library. As a result, Haddock has to do more
work during the `haddock.Cabal` test case, increasing the number of
allocations it requires. Therefore,

-------------------------
Metric Increase:
    haddock.Cabal
-------------------------