syntax_data: {"ast_node_type":"other","tokens":[{"end":49,"kind":"keyword","start":0,"text":"@call(mir_cast_ptr_to_ptr,"}]}
source_snippet:             @call(mir_cast_ptr_to_ptr, args) => {
context_before:             },
context_after:                 let source = self.parse_operand(args[0])?;