Merge boxWithStdlib testData into box, delete BoxWithStdlib test

compiler/testData/codegen/box/evaluate/char.kt

@@ -0,0 +1,14 @@
+// WITH_RUNTIME
+
+package test
+
+@Retention(AnnotationRetention.RUNTIME)
+annotation class Ann(val c1: Int)
+
+@Ann('a' - 'a') class MyClass
+
+fun box(): String {
+    val annotation = MyClass::class.java.getAnnotation(Ann::class.java)!!
+    if (annotation.c1 != 0) return "fail : expected = ${1}, actual = ${annotation.c1}"
+    return "OK"
+}