If multiple compile units are seen then emit them independently. In other words,...

If multiple compile units are seen then emit them independently. In other words, do not force all DIEs into first, whatever it is, compile unit.

Note, multiple compile unit support is not well tested (it did not work correctly until now anyway.)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62116 91177308-0d34-0410-b5e6-96231b3b80d8