Noarg: prohibit noarg for inner and local classes

Report warning if old JVM backend is used, and error for JVM IR, which
is supposed to be enabled as default in the next Kotlin release.

 #KT-43725 Fixed

plugins/noarg/noarg-cli/testData/diagnostics/innerClass.kt

@@ -0,0 +1,14 @@
+annotation class NoArg
+
+class Outer {
+    @NoArg
+    inner class <!NOARG_ON_INNER_CLASS!>Inner<!>(val b: Any)
+}
+
+fun local() {
+    @NoArg
+    class <!NOARG_ON_LOCAL_CLASS!>Local<!>(val l: Any) {
+        @NoArg
+        inner class <!NOARG_ON_INNER_CLASS!>InnerLocal<!>(val x: Any)
+    }
+}