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Author SHA1 Message Date
Richard Smith 151c456858 [c++1z] P0195R2: Support pack-expansion of using-declarations. 
This change introduces UsingPackDecl as a marker for the set of UsingDecls
produced by pack expansion of a single (unresolved) using declaration. This is
not strictly necessary (we just need to be able to map from the original using
declaration to its expansions somehow), but it's useful to maintain the
invariant that each declaration reference instantiates to refer to one
declaration.

This is a re-commit of r290080 (reverted in r290092) with a fix for a
use-after-lifetime bug.

llvm-svn: 290203
 2016-12-20 21:35:28 +00:00
Daniel Jasper 9949ead55a Revert "[c++1z] P0195R2: Support pack-expansion of using-declarations." 
This reverts commit r290080 as it leads to many Clang crashes, e.g.:
http://lab.llvm.org:8011/builders/clang-cmake-aarch64-quick/builds/1814

llvm-svn: 290092
 2016-12-19 10:09:25 +00:00
Richard Smith 22a250cd5d [c++1z] P0195R2: Support pack-expansion of using-declarations. 
This change introduces UsingPackDecl as a marker for the set of UsingDecls
produced by pack expansion of a single (unresolved) using declaration. This is
not strictly necessary (we just need to be able to map from the original using
declaration to its expansions somehow), but it's useful to maintain the
invariant that each declaration reference instantiates to refer to one
declaration.

llvm-svn: 290080
 2016-12-19 04:08:53 +00:00