IC: Forbid inner classes inside inline classes

#KT-43067 Fixed

compiler/testData/codegen/box/inlineClasses/kt27705.kt

@@ -2,6 +2,7 @@
 // WITH_RUNTIME
 
 inline class Z(val x: Int) {
+    @Suppress("INNER_CLASS_INSIDE_INLINE_CLASS")
     inner class Inner(val y: Int) {
         val xx = x
     }

compiler/testData/codegen/box/inlineClasses/kt27706.kt

@@ -2,6 +2,7 @@
 // WITH_RUNTIME
 
 inline class Z(val x: Int) {
+    @Suppress("INNER_CLASS_INSIDE_INLINE_CLASS")
     inner class Inner(val z: Z) {
         val xx = x
     }

compiler/testData/codegen/box/reflection/call/inlineClasses/constructorWithInlineClassParameters.kt

@@ -12,6 +12,7 @@ class Outer(val z1: Z) {
 }
 
 inline class InlineOuter(val z1: Z) {
+    @Suppress("INNER_CLASS_INSIDE_INLINE_CLASS")
     inner class Inner(val z2: Z) {
         val test = "$z1 $z2"
     }