syntax_data: {"ast_node_type":"function","tokens":[{"end":50,"kind":"keyword","start":0,"text":"fn"}]}
source_snippet:     fn from(value: ty::Binder<I, I::Ty>) -> Self {
context_before: impl<I: Interner> From<ty::Binder<I, I::Ty>> for UnsafeBinderInner<I> {
context_after:         UnsafeBinderInner(value)