syntax_data: {"ast_node_type":"other","tokens":[{"end":80,"kind":"keyword","start":0,"text":".expect(\"expected"}]}
source_snippet:                     .expect("expected subslice projection on fixed-size array"),
context_before:                     .try_to_target_usize(self.tcx)
context_after:                 _ => bug!("from_end: false slice pattern of non-array type"),