Added TrimAndClear function into ITrimmable

src/builder/resources/speiger/assets/collections/templates/sets/OpenHashSet.template

@@ -306,6 +306,18 @@ public class HASH_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE imp
 		return true;
 	}
 	
+	@Override
+	public void clearAndTrim(int size) {
+		if(nullIndex <= size) {
+			clear();
+			return;
+		}
+		nullIndex = size;
+		mask = nullIndex - 1;
+		maxFill = Math.min((int)Math.ceil(nullIndex * loadFactor), nullIndex - 1);
+		keys = NEW_KEY_ARRAY(nullIndex + 1);
+	}
+	
 	private void ensureCapacity(int newCapacity) {
 		int size = HashUtil.arraySize(newCapacity, loadFactor);
 		if(size > nullIndex) rehash(size);