syntax_data: {"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"///"}]}
source_snippet: /// Either LLVMAttributeReturnIndex, LLVMAttributeFunctionIndex, or a parameter
context_before: pub const LLVMAttributeFunctionIndex: ::libc::c_uint = !0; // -1
context_after: /// number from 1 to N.