syntax_data: {"ast_node_type":"other","tokens":[{"end":68,"kind":"keyword","start":0,"text":"providers.check_tail_calls"}]}
source_snippet:     providers.check_tail_calls = check_tail_calls::check_tail_calls;
context_before:     providers.check_unsafety = check_unsafety::check_unsafety;
context_after:     providers.thir_body = thir::cx::thir_body;