syntax_data: {"ast_node_type":"other","tokens":[{"end":62,"kind":"keyword","start":0,"text":"DesugaringKind::WhileLoop"}]}
source_snippet:             DesugaringKind::WhileLoop => value == "WhileLoop",
context_before:             DesugaringKind::ForLoop => value == "ForLoop",
context_after:             DesugaringKind::BoundModifier => value == "BoundModifier",