syntax_data: {"ast_node_type":"other","tokens":[{"end":50,"kind":"keyword","start":0,"text":"\"validate"}]}
source_snippet:         "validate MIR after each transformation"),
context_before:     validate_mir: bool = (false, parse_bool, [UNTRACKED],
context_after:     verbose_asm: bool = (false, parse_bool, [TRACKED],