[DWARF] Fix incorrect prologue end line record.

The prologue-end line record must be emitted after the last
instruction that is part of the function frame setup code and before
the instruction that marks the beginning of the function body.

Patch by Carlos Alberto Enciso!

Differential Revision: https://reviews.llvm.org/D41762

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@325143 91177308-0d34-0410-b5e6-96231b3b80d8
6 files changed