Use isJvmInterface in JVM back-end instead of isInterface

To support const vals and proper initialization order for companions of
annotations (since 1.3+) as well as interfaces

 #KT-16962 Fixed

compiler/testData/codegen/box/annotations/constValInAnnotation.kt

@@ -0,0 +1,19 @@
+// !LANGUAGE: +NestedClassesInAnnotations
+// WITH_RUNTIME
+// TARGET_BACKEND: JVM
+// FILE: Foo.java
+
+@Anno(Anno.CONST)
+public class Foo {}
+
+// FILE: Anno.kt
+
+annotation class Anno(val value: Int) {
+    companion object {
+        const val CONST = 42
+    }
+}
+
+fun box(): String =
+        if ((Foo::class.java.annotations.single() as Anno).value == 42) "OK" else "Fail"
+