syntax_data: {"ast_node_type":"variable","tokens":[{"end":51,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:             let content = if arg.len() == a.len() {
context_before:         if let Some(a) = ICE_REPORT_COMPILER_FLAGS.iter().find(|a| arg.starts_with(*a)) {
context_after:                 // A space-separated option, like `-C incremental=foo` or `--crate-type rlib`