[SymbolFilePDB] Simplify getting the source file path

Summary: Replace SymbolFilePDB::GetSourceFileNameForPDBCompiland() with PDBSymbolCompiland::getSourceFileFullPath().

Reviewers: zturner, rnk, lldb-commits

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D44456

git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@327925 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed