Introduce annotation tokens, a special kind of token, created and used only by the parser to replace a group of tokens with a single token encoding semantic information.
Will be fully utilized later for C++ nested-name-specifiers.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58911 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed