syntax_data: {"ast_node_type":"other","tokens":[{"end":67,"kind":"keyword","start":0,"text":"UnsafeBinderCast"}]}
source_snippet:             UnsafeBinderCast if unsafe_op_in_unsafe_fn_allowed => {
context_before:             }
context_after:                 dcx.emit_err(UnsafeBinderCastRequiresUnsafeUnsafeOpInUnsafeFnAllowed {