[DebugInfoPDB] Add DIA implementation for getSrcLineOnTypeDefn

Summary: This helps to determine the line number for a PDB type with definition

Reviewers: zturner, llvm-commits, rnk

Reviewed By: zturner

Subscribers: rengolin, JDevlieghere

Differential Revision: https://reviews.llvm.org/D44119

llvm-svn: 326857