Bug #:

Submitted by:
Reviewed by:
- Finished up incomplete type analysis for varibles (in Sema::ParseDeclarator()).
- Added many spec refs, since this area is confusing (for top level decls
in particular).
- Added a FIXME to MergeVarDecl()...it needs to be taught about tentative
definitions. As a result, we currently issue some bogus diagnostics.

llvm-svn: 39372