syntax_data: {"ast_node_type":"other","tokens":[{"end":95,"kind":"keyword","start":0,"text":"thir::InlineAsmOperand::In"}]}
source_snippet:                         thir::InlineAsmOperand::In { reg, expr } => mir::InlineAsmOperand::In {
context_before:                     .map(|op| match *op {
context_after:                             reg,