syntax_data: {"ast_node_type":"variable","tokens":[{"end":33,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:                 let fname_ptr = {
context_before:                 #[cfg(not(target_os = "cygwin"))]
context_after:                     assert!(!info.dli_fname.is_null(), "dli_fname cannot be null");