• Edward Z. Yang's avatar
    Update Cabal to HEAD, IPID renamed to Component ID. · 5b0191f7
    Edward Z. Yang authored
    This commit contains a Cabal submodule update which unifies installed
    package IDs and package keys under a single notion, a Component ID.
    We update GHC to keep follow this unification.  However, this commit
    does NOT rename installed package ID to component ID and package key to
    unit ID; the plan is to do that in a companion commit.
        - Compiler info now has "Requires unified installed package IDs"
        - 'exposed' is now expected to contain unit keys, not IPIDs.
        - Shadowing is no more.  We now just have a very simple strategy
          to deal with duplicate unit keys in combined package databases:
          if their ABIs are the same, use the latest one; otherwise error.
          Package databases maintain the invariant that there can only
          be one entry of a unit ID.
    Signed-off-by: default avatarEdward Z. Yang <ezyang@cs.stanford.edu>
    Test Plan: validate
    Reviewers: simonpj, austin, bgamari, hvr, goldfire
    Subscribers: thomie
    Differential Revision: https://phabricator.haskell.org/D1184
    GHC Trac Issues: #10714
shadow.stdout 288 Bytes