Migrate boxWithJava tests to multi-file framework

compiler/testData/codegen/boxWithJava/reflection/annotationsOnJavaMembers.kt

@@ -0,0 +1,28 @@
+// FILE: J.java
+
+@Anno("J")
+public class J {
+    @Anno("foo")
+    public static int foo = 42;
+
+    @Anno("bar")
+    public static void bar() {}
+
+    @Anno("constructor")
+    public J() {}
+}
+
+// FILE: K.kt
+
+import kotlin.test.assertEquals
+
+annotation class Anno(val value: String)
+
+fun box(): String {
+    assertEquals("[@Anno(value=J)]", J::class.annotations.toString())
+    assertEquals("[@Anno(value=foo)]", J::foo.annotations.toString())
+    assertEquals("[@Anno(value=bar)]", J::bar.annotations.toString())
+    assertEquals("[@Anno(value=constructor)]", ::J.annotations.toString())
+
+    return "OK"
+}