Update Expr::{getIntegerConstantExprValue, isIntegerConstantExpr} to
  use default APSInt constructor instead of embedding arbitrary
  constant.

Update OverloadExpr::getNumArgs to use getIntegerConstantExprValue.

Update OverloadExpr::getExpr to be const.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54828 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed