Fix the type signature of DwarfExpression::Add.*Constant to support values >32 bits.
This fixes an embarrassing bug when emitting .debug_loc entries for 64-bit+ constants,
which were previously silently truncated to 32 bits.

<rdar://problem/26843232>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273736 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed