[commit: ghc] master: Make the "matchable-given" check happen first (228ddb9)

[git at git.haskell.org]

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

On branch  : master
Link       : http://ghc.haskell.org/trac/ghc/changeset/228ddb95ee137e7cef02dcfe2521233892dd61e0/ghc

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commit 228ddb95ee137e7cef02dcfe2521233892dd61e0
Author: Simon Peyton Jones <simonpj at microsoft.com>
Date:   Wed May 13 12:49:13 2015 +0100

    Make the "matchable-given" check happen first
    
    This change makes the matchable-given check apply uniformly to
         - constraint tuples
         - natural numbers
         - Typeable
    as well as to vanilla class constraints.
    
    See Note [Instance and Given overlap] in TcInteract


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228ddb95ee137e7cef02dcfe2521233892dd61e0
 compiler/typecheck/TcInteract.hs | 113 +++++++++++++++++++++------------------
 1 file changed, 60 insertions(+), 53 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 228ddb95ee137e7cef02dcfe2521233892dd61e0