[Sema] Introduce a data recursive evaluator specific to binary operators.

[Sema] Introduce a data recursive evaluator specific to binary operators.

This allows us to handle extreme cases of chained binary operators without causing stack
overflow.
The binary operators that are handled with the data recursive evaluator are
comma, logical, or operators that have operands with integral or enumeration type.

Part of rdar://10941790.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152819 91177308-0d34-0410-b5e6-96231b3b80d8