[ThinLTO] Fix dot dumper for regular LTO modules

Regular LTO module identifier is (unsigned)-1. This patch emits correct
module identifier while printing edges with source summary in regular
LTO module.

Differential revision: https://reviews.llvm.org/D53583


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@345118 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed