syntax_data: {"ast_node_type":"variable","tokens":[{"end":69,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:                 if let Some(GlobalAlloc::Function { instance, .. }) =
context_before:                 // printing above (which also has to handle pointers to all sorts of things).
context_after:                     self.tcx().try_get_global_alloc(prov.alloc_id())