syntax_data: {"ast_node_type":"variable","tokens":[{"end":83,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:                         let projection = tcx.mk_place_elems(base_place.projection);
context_before:                             self.local_decls.push(LocalDecl::new(fake_borrow_ty, expr_span));
context_after:                         self.cfg.push_assign(