kapt: Fix compilation in 'compile' running mode (KT-33800)

plugins/kapt3/kapt3-cli/testData/integration/kt33800/Test.kt

@@ -0,0 +1,19 @@
+package test
+
+import apt.Anno
+import generated.Example as ExampleGenerated
+
+@Anno
+class Example() {
+    private val callback = object : Any() {
+        val obj = Object()
+    }
+
+    fun call() {
+        callback.obj
+    }
+}
+
+fun main() {
+    println("Generated class: " + ExampleGenerated::class.java.name)
+}