syntax_data: {"ast_node_type":"other","tokens":[{"end":87,"kind":"keyword","start":0,"text":"sm.new_source_file(Path::new(\"blork.rs\").to_owned().into(),"}]}
source_snippet:     sm.new_source_file(Path::new("blork.rs").to_owned().into(), inputtext.to_string());
context_before:     let selection = "     \n    ~~\n~~~\n~~~~~     \n   \n";
context_after:     let span = span_from_selection(inputtext, selection);