Unused symbol: handle internal constructor used in Java #KT-27708 Fixed

idea/testData/multiFileLocalInspections/unusedSymbol/internalConstructorUsedInJava/before/User.java

@@ -0,0 +1,5 @@
+public class User {
+    public static void main(String[] args) {
+        new WithInternalConstructor();
+    }
+}

idea/testData/multiFileLocalInspections/unusedSymbol/internalConstructorUsedInJava/before/test.kt

@@ -0,0 +1,3 @@
+class WithInternalConstructor(val x: Int) {
+    internal <caret>constructor() : this(42)
+}