Fix buffer overflow.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163578 91177308-0d34-0410-b5e6-96231b3b80d8
[libclang] Fix getting a cursor inside an angled #include directive.

Fixed by pointing the end location of the preprocessed entity for the #include
at the closing '>', instead of the start of '<'.

rdar://11113134

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163588 91177308-0d34-0410-b5e6-96231b3b80d8