syntax_data: {"ast_node_type":"variable","tokens":[{"end":75,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:         let scope = &mut self.scopes.const_continuable_scopes[break_index];
context_before:             .scope_index(self.scopes.const_continuable_scopes[break_index].region_scope, span);
context_after:         self.cfg.push_assign(block, source_info, discr, rvalue);