syntax_data: {"ast_node_type":"other","tokens":[{"end":81,"kind":"keyword","start":0,"text":"\"when"}]}
source_snippet:         "when MIR inlining, whether to preserve debug info for callee variables \
context_before:     inline_mir_preserve_debug: Option<bool> = (None, parse_opt_bool, [TRACKED],
context_after:         (default: preserve for debuginfo != None, otherwise remove)"),