syntax_data: {"ast_node_type":"other","tokens":[{"end":105,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:         // of as being generic over the argument types, however this is implicit so these types don't get
context_before:         // ICE If they mismatch. Unfortunately `ConstKind::Expr` is a little special and can be thought
context_after:         // related when we relate the args of the item this const arg is for.