ghc-lens-4.19.2-bp153.1.23

- Update lens to version 4.19.2.
  4.19.2 [2020.04.15]
  - ------------------
  * Remove the test suite's dependency on `test-framework-th`.

- Update lens to version 4.19.1.
  4.19.1 [2020.02.13]
  - ------------------
  * Fix a bug introduced in 4.19 where using `_TupE` to `preview` a value would
    always fail.

- Update lens to version 4.19.
  4.19 [2020.02.03]
  - ----------------
  * Support building with GHC 8.10.
  * The types of `_TupE` and `_UnboxedTupE` are now `Prism' Exp [Maybe Exp]`
    when built against `template-haskell-2.16` or later to reflect the new
    types of `TupE` and `UnboxedTupE`.
  * Add `_ForallVisT` and `_BytesPrimL` prisms when building against
    `template-haskell-2.16` or later.
  * Make `<>~` and `<>=` and their `<op` and `<<op` state variants require only
    `Semigroup`, not `Monoid`.
  * Add `{Functor,Foldable,Traversable}WithIndex` instances for
    `Control.Applicative.Const` and `Data.Functor.Constant.Constant`.

- Drop obsolete group attributes.

- Update lens to version 4.18.1.
  4.18.1 [2019.09.13]
  - ------------------
  * Remove the use of `cpp-options: -traditional`. This should be unnecessary
    on all versions of GHC that `lens` supports, as modern GHCs already use
    `-traditional` internally during preprocessing. More critically, the use
    of `cpp-options: -traditional` breaks profiling builds on GHC 8.8
    (see https://gitlab.haskell.org/ghc/ghc/issues/17185).

- Update lens to version 4.18.
  Upstream has edited the change log file since the last release in
  a non-trivial way, i.e. they did more than just add a new entry
  at the top. You can review the file at:
  http://hackage.haskell.org/package/lens-4.18/src/CHANGELOG.markdown

- Update Cabal file to allow building with call-stack 0.2.x.

- Update Cabal file for more accurate build dependencies.

- Update lens to version 4.17.1.
  4.17.1 [2019.04.26]
  - ------------------
  * Support `th-abstraction-0.3.0.0` or later.
  * Only incur `semigroups` and `void` dependencies on old GHCs.
  * Add `holes1Of`.
  * Add `locally` (https://github.com/ekmett/lens/pull/829).
  * Add `ilocally` (https://github.com/ekmett/lens/pull/836).
  * Add a third `Prism` law.
  * Add `gplate1`.
  * Add `Wrapped`/`Rewrapped` instances for `Data.Monoid.Ap`.

- Add lens at version 4.17.

- Update to version 4.15.3.

- Update to version 4.15.1 revision 4 with cabal2obs.

- Update to version 4.14 revision 1 with cabal2obs.

- Update to version 4.13 revision 0 with cabal2obs.

- update to 4.13
  * Pattern synonyms
  * Moved foldMapBy and foldBy into reflection 2.1
  * Added traverseByOf, sequenceByOf.
  * Reexported traverseBy and sequenceBy from reflection 2.1.
  * Modified the signatures of alaf and auf to work with a Functor rather than
    a Profunctor and rather drastically generalized them.
  * Removed Control.Lens.Internal.Getter.coerce in favor of the upstream phantom
    combinator in contravariant 1.3+
  * Renamed coerced to phantasm to get it out of the way.
  * Added Wrapped instance for Down

- initial commit