syntax_data: {"ast_node_type":"other","tokens":[{"end":56,"kind":"keyword","start":0,"text":"impl<CTX,"}]}
source_snippet: impl<CTX, I: Interner> HashStable<CTX> for RegionKind<I>
context_before: // This is not a derived impl because a derive would require `I: HashStable`
context_after: where