Make sure int[] is loaded before running the test.

Otherwise the compiler would fail typing some instructions and bail.

Test: 597-deopt-busy-loop
Change-Id: Ib34b4426de3551a91f39e3f848ea72125ff573a0
diff --git a/test/597-deopt-busy-loop/src/FloatLoop.java b/test/597-deopt-busy-loop/src/FloatLoop.java
index 57667a6..7aadce4 100644
--- a/test/597-deopt-busy-loop/src/FloatLoop.java
+++ b/test/597-deopt-busy-loop/src/FloatLoop.java
@@ -51,6 +51,10 @@
         }
     }
 
+    // Create an empty int[] to force loading the int[] class before compiling $noinline$busyLoop.
+    // This makes sure the compiler can properly type int[] and not bail.
+    static int[] emptyArray = new int[0];
+
     public void $noinline$busyLoop() {
         Main.assertIsManaged();