syntax_data: {"ast_node_type":"other","tokens":[{"end":90,"kind":"keyword","start":0,"text":"debug_assert!(!matches!(Category::of(&expr.kind),"}]}
source_snippet:                 debug_assert!(!matches!(Category::of(&expr.kind), Some(Category::Place)));
context_before:                 // these are not places, so we need to make a temporary.
context_after:                 let temp =