core: fix type in fill-array instruction

jadx-samples/src/main/java/jadx/samples/TestArrays.java

@@ -4,7 +4,7 @@ public class TestArrays extends AbstractTest {
 
 	public int test1(int i) {
 		// fill-array-data
-		int[] a = new int[] { 1, 2, 3, 5 };
+		int[] a = new int[]{1, 2, 3, 5};
 		return a[i];
 	}
 
@@ -20,11 +20,27 @@ public class TestArrays extends AbstractTest {
 		return a.length;
 	}
 
+	private static Object test4(int type) {
+		if (type == 1) {
+			return new int[]{1, 2};
+		} else if (type == 2) {
+			return new float[]{1, 2};
+		} else if (type == 3) {
+			return new short[]{1, 2};
+		} else if (type == 4) {
+			return new byte[]{1, 2};
+		} else {
+			return null;
+		}
+	}
+
 	@Override
 	public boolean testRun() throws Exception {
 		assertEquals(test1(2), 3);
 		assertEquals(test2(2), 2);
 		assertEquals(test3(2), 2);
+
+		assertTrue(test4(4) instanceof byte[]);
 		return true;
 	}