syntax_data: {"ast_node_type":"other","tokens":[{"end":86,"kind":"keyword","start":0,"text":"InlineAsmOperand::In"}]}
source_snippet:                             InlineAsmOperand::In { reg, expr: self.mirror_expr(expr) }
context_before:                         hir::InlineAsmOperand::In { reg, expr } => {
context_after:                         }