Reorganize CodeGen{Function,Module} to eliminate the unfortunate
Block{Function,Module} base class.  Minor other refactorings.

Fixed a few address-space bugs while I was there.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125085 91177308-0d34-0410-b5e6-96231b3b80d8
21 files changed