Including a header file that forwards to another lib results in incorrect 'Unused file' warning

[rlipscombe]

Describe the bug

Given -include("errors.hrl")., which contains -include_lib("other/include/errors.hrl")., none of the definitions in the included file are recognised as in scope.

This leads to an incorrect "Unused file: errors.hrl" (sometimes at the -module attribute, rather than at the -include, but I couldn't get a small-enough repro for that).

To Reproduce

See https://github.com/rlipscombe/erlang_ls_1501_parent and https://github.com/rlipscombe/erlang_ls_1501_child, 'erlang_ls_1501' tag.

Expected behavior

No warning.

Actual behavior

You get a spurious warning, as described.

Context

• erlang_ls version (tag/sha): 0.50.0
• Editor used: VS Code Version: 1.87.0 (Universal) Commit: 019f4d1419fbc8219a181fab7892ebccf7ee29a2
• LSP client used: erlang-ls.erlang-ls v0.0.42