syntax_data: {"ast_node_type":"function","tokens":[{"end":35,"kind":"keyword","start":0,"text":"fn"}]}
source_snippet: fn insert_discr_cast_to_u128<'tcx>(
context_before: /// Inserts the cast of an operand (any type) to a u128 value that holds the discriminant value.
context_after:     tcx: TyCtxt<'tcx>,