[llvm-readelf] Print "File: lib.a(file.o)" info when dumping archive files.

[llvm-readelf] Print "File: lib.a(file.o)" info when dumping archive files.

Match GNU readelf.

https://bugs.llvm.org/show_bug.cgi?id=35351

Reviewers: jhenderson, grimar, MaskRay, rupprecht

Reviewed by: jhenderson, MaskRay, grimar

Differential Revision: https://reviews.llvm.org/D64361

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@366147 91177308-0d34-0410-b5e6-96231b3b80d8