Implement support for cached code completions for
nested-name-specifiers. Also includes fixes to the generation of
nested-name-specifier result in the non-cached case; we were producing
lame results for namespaces and namespace aliases, which (1) didn't
always have nested-name-specifiers when we want them, and (2) did not
have the necessary "::" as part of the completion.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111203 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed