KT-14890 Fix the problem with RemoveEmptyClassBodyIntention for nested class followed by a secondary constructor

#KT-14890 Fixed

idea/testData/intentions/removeEmptyClassBody/nestedClassFollowedByFunction.kt

@@ -0,0 +1,10 @@
+class A(val x: String) {
+
+    class C {<caret>}
+
+    fun foo() {
+    }
+
+    constructor(x: String, y: Int) : this(x) {
+    }
+}