Source Corpus Fixtures

This directory contains external source inputs for tests/source_corpus.rs. They exercise the real command-line frontend without making test cases part of the public example collection.

• valid/ contains small source files that must pass human and JSON check modes.
• invalid/ contains one intended language error per file and an expected stable diagnostic code in the Rust test table.
• Imported companion modules remain next to the valid root that loads them.

These files are compiler-development fixtures. Public, runnable packages belong in the repository root examples/ directory, and normative behavior belongs in spec/.