Make the use of DW_AT_ranges in the compile unit depend also upon
the existence of comdat/special sections.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199954 91177308-0d34-0410-b5e6-96231b3b80d8
InitToTextSection is redundant with InitSections. Remove it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199955 91177308-0d34-0410-b5e6-96231b3b80d8