syntax_data: {"ast_node_type":"other","tokens":[{"end":64,"kind":"keyword","start":0,"text":"F:"}]}
source_snippet:         F: LLVMOrcLLJITBuilderObjectLinkingLayerCreatorFunction,
context_before:         Builder: LLVMOrcLLJITBuilderRef,
context_after:         Ctx: *mut ::libc::c_void,