[commit: ghc] master: Derive instances in Data.Data (4842a80)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : master
Link       : http://ghc.haskell.org/trac/ghc/changeset/4842a8050058bb571db861be3fc5ec03a1b4274b/ghc

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commit 4842a8050058bb571db861be3fc5ec03a1b4274b
Author: Ryan Scott <ryan.gl.scott at gmail.com>
Date:   Fri Jun 3 14:48:16 2016 -0400

    Derive instances in Data.Data
    
    Summary:
    Currently, none of the `Data` instances in `Data.Data` are derived,
    which has resulted in hundreds of lines of laboriously hand-written `Data`
    instances. This cleans it up by using `DeriveDataTypeable` to derive all of
    the boring instances.
    
    Note that previously, `tcTopSrcDecls` in `TcRnDriver` was typechecking the
    variables generated in `deriving` statements before other top-level variables,
    which causes an error when `DeriveDataTypeable` is used in `Data.Data`, since
    the `deriving`-generated variable definitions refer to top-level definitions
    in `Data.Data` itself. To fix this, the order in which these two groups are
    typechecked was reversed.
    
    Test Plan: ./validate
    
    Reviewers: rwbarton, bgamari, hvr, austin
    
    Reviewed By: austin
    
    Subscribers: rwbarton, thomie
    
    Differential Revision: https://phabricator.haskell.org/D2291


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4842a8050058bb571db861be3fc5ec03a1b4274b
 compiler/typecheck/TcRnDriver.hs |  17 +-
 libraries/base/Data/Data.hs      | 755 +++------------------------------------
 2 files changed, 69 insertions(+), 703 deletions(-)

Diff suppressed because of size. To see it, use:

    git diff-tree --root --patch-with-stat --no-color --find-copies-harder --ignore-space-at-eol --cc 4842a8050058bb571db861be3fc5ec03a1b4274b