syntax_data: {"ast_node_type":"other","tokens":[{"end":49,"kind":"keyword","start":0,"text":"pub"}]}
source_snippet:     pub calling_convention: DllCallingConvention,
context_before:     /// of the values, and we use `DllCallingConvention::C` to represent `"cdecl"`.
context_after:     /// Span of import's "extern" declaration; used for diagnostics.