Kapt: Strict mode. Issue an error if the converter fails to process a class (#KT-25518, #KT-24272)

plugins/kapt3/kapt3-compiler/testData/converter/kt24272.kt

@@ -0,0 +1,15 @@
+// STRICT_MODE
+
+// EXPECTED_ERROR(java:23:50) cannot find symbol
+// EXPECTED_ERROR(java:28:49) cannot find symbol
+// EXPECTED_ERROR(other:-1:-1) Can't generate a stub for 'Foo$Bar$Bar'.
+
+class Foo(private val string: String) {
+    val bar = Bar("bar")
+
+    class Bar(val string: String) {
+        class Bar(val nested: String)
+
+        val bars: ArrayList<Bar> = ArrayList()
+    }
+}