pub fn NodeMap<T>() -> NodeMap<T> { FxHashMap() }
pub fn DefIdMap<T>() -> DefIdMap<T> { FxHashMap() }
+pub fn HirIdMap<T>() -> HirIdMap<T> { FxHashMap() }
pub fn ItemLocalMap<T>() -> ItemLocalMap<T> { FxHashMap() }
pub fn NodeSet() -> NodeSet { FxHashSet() }
pub fn DefIdSet() -> DefIdSet { FxHashSet() }
+pub fn HirIdSet() -> HirIdSet { FxHashSet() }
pub fn ItemLocalSet() -> ItemLocalSet { FxHashSet() }
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