Module compat 

Structs

NoPublicRemoval

Flags public symbols that existed before but are absent after the change (by qualified_name), indicating a breaking API removal.

SignatureStable

Flags public symbols whose signature changed between before and after, indicating a potential breaking change in the API contract.

TraitImplComplete

Detects impl blocks that lost methods compared to the before state. Groups symbols by parent (SymbolId) and compares method counts.

Functions

compat_checks

Returns all 3 compatibility checks.