GT-3354: Code review fixes

Ghidra/Framework/Generic/src/main/java/util/CollectionUtils.java

@@ -398,6 +398,19 @@ public class CollectionUtils {
 		return () -> iterator;
 	}
 
+	/**
+	 * Combines all collections passed-in into a pass-through not creating a new collection) 
+	 * Iterable.
+	 * 
+	 * @param iterables the iterables to combine
+	 * @return the iterable
+	 */
+	@SafeVarargs
+	public static <T> Iterable<T> asIterable(Iterable<T>... iterables) {
+		Stream<T> s = asStream(iterables);
+		return asIterable(s.iterator());
+	}
+
 	/**
 	 * Turns the given iterator into a stream
 	 * 

Ghidra/Framework/Generic/src/test/java/util/CollectionUtilsTest.java

@@ -225,6 +225,21 @@ public class CollectionUtilsTest {
 		assertEquals("One", iterator.next());
 	}
 
+	@Test
+	public void testAsIterable_Collections() {
+
+		List<String> original = Arrays.asList("One", "Two", "Three", "Four");
+		Collection<String> a = Arrays.asList(original.get(0), original.get(1));
+		Collection<String> b = Arrays.asList(original.get(2));
+		Collection<String> c = Collections.emptyList();
+		Collection<String> d = Arrays.asList(original.get(3));
+		Iterable<String> iterable = CollectionUtils.asIterable(a, b, c, d);
+
+		List<String> result = new ArrayList<>();
+		iterable.forEach(s -> result.add(s));
+		assertEquals(original, result);
+	}
+
 	@Test
 	public void testAsList_UnknownToType() {
 		List<String> list = new ArrayList<>();