[LLD] [COFF] Wrap file location pair<StringRef,int> in Optional<>. NFC.
authorMartin Storsjo <martin@martin.st>
Tue, 15 Oct 2019 09:18:18 +0000 (09:18 +0000)
committerMartin Storsjo <martin@martin.st>
Tue, 15 Oct 2019 09:18:18 +0000 (09:18 +0000)
commit9318c94ebbf28beb843852246beb34082c659bae
treebc15a6a7ac96be84a2fa7903f47b93e191fb3797
parentcc2f68ea2dc8132270218ca14ab0e21fb71d3ec8
[LLD] [COFF] Wrap file location pair<StringRef,int> in Optional<>. NFC.

This makes use of it slightly clearer, and makes it match the
same construct in the lld ELF linker.

Differential Revision: https://reviews.llvm.org/D68935

llvm-svn: 374869
lld/COFF/PDB.cpp
lld/COFF/PDB.h
lld/COFF/SymbolTable.cpp