== turned into a safe-call

compiler/testData/diagnostics/tests/delegatedProperty/wrongCountOfParametersInSet.kt

@@ -1,3 +1,5 @@
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+
 class A {
   var a: Int by <!DELEGATE_SPECIAL_FUNCTION_NONE_APPLICABLE!>Delegate()<!>
 }
@@ -6,12 +8,8 @@ var aTopLevel: Int by <!DELEGATE_SPECIAL_FUNCTION_NONE_APPLICABLE!>Delegate()<!>
 
 class Delegate {
   fun get(t: Any?, p: PropertyMetadata): Int {
-    t.equals(p) // to avoid UNUSED_PARAMETER warning
     return 1
   }
 
-  fun set(t: Any?, p: PropertyMetadata, a: Int, c: Int) {
-    t.equals(p) // to avoid UNUSED_PARAMETER warning
-    c.equals(a)
-  }
+  fun set(t: Any?, p: PropertyMetadata, a: Int, c: Int) {}
 }