Parsing of namespaces:

-NamespaceDecl for the AST
-Checks for name clashes between namespaces and tag/normal declarations.

This commit doesn't implement proper name lookup for namespaces.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50321 91177308-0d34-0410-b5e6-96231b3b80d8
12 files changed