Evaluate overloaded toString() in watches for Kotlin classes with delegate properties (KT-14068)

(cherry picked from commit 7774d2c)

 #KT-14068 Fixed

idea/testData/debugger/tinyApp/src/evaluate/singleBreakpoint/frame/delegatedPropertyInClassWithToString.kt

@@ -0,0 +1,21 @@
+package delegatedPropertyInClassWithToString
+
+import kotlin.reflect.KProperty
+
+fun main(args: Array<String>) {
+    val a = A()
+    //Breakpoint!
+    args.size
+}
+
+class A {
+    val prop by MyDelegate()
+
+    override fun toString(): String = "KotlinTest"
+}
+
+class MyDelegate {
+    operator fun getValue(t: Any?, p: KProperty<*>): Int = 1
+}
+
+// PRINT_FRAME