{"ast_node_type":"other","tokens":[{"end":68,"kind":"keyword","start":0,"text":"//"}]}
    // constraint that the `transmute` introduced is to `assume` it.
    // after MIR inlining) so the only way to tell the backend about the
    assume_scalar_range(bx, imm, to_scalar, to_backend_ty, Some(&from_scalar));