Implement more of C++0x 'auto'. A variable with an auto type specifier must have an initializer. Also, move some tests around to match the C++0x draft better.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@75322 91177308-0d34-0410-b5e6-96231b3b80d8
7 files changed