[lld] [llvm] RFC: [llvm-readobj] Support FDO package metadata in readelf (PR #214375)

[Dan McGregor via llvm-commits]

dankm wrote:

> Please pay attention to LLVM coding standards, particularly around your variable name casing.

Sure, this started as my quick and dirty proof of concept. I'll rename things as appropriate.

> The ScopedPrinter and JSON changes should be in a separate PR with tests added in the Support unit tests.

Makes sense. Looks like ScopedPrinter only has unit tests and no integration tests? Should be easy enough to add. I need to figure out how to make a pull request based off another pull request now :stuck_out_tongue:

https://github.com/llvm/llvm-project/pull/214375