[VISUALIZER] Change rendering of equals call

compiler/visualizer/testData/rawBuilder/declarations/contracts/newSyntax/functionWithBothOldAndNewSyntaxContractDescription.kt

@@ -6,7 +6,7 @@ fun test1(s: String?) contract [returnsNotNull()] {
 //      [ERROR: not resolved]
 //      │         [ERROR: not resolved]
 //      │         │        test1.s: String?
-//      │         │        │ fun (Any).equals(Any?): Boolean
+//      │         │        │ EQ operator call
 //      │         │        │ │  Nothing?
 //      │         │        │ │  │
         returns() implies (s != null)

compiler/visualizer/testData/rawBuilder/declarations/enums2.kt

@@ -21,7 +21,7 @@ enum class SomeEnum(val x: Some) {
     SECOND(O2)  {
 //                                           Boolean
 //                                           │ SomeEnum.SECOND.check.y: Some
-//                                           │ │ fun (Any).equals(Any?): Boolean
+//                                           │ │ EQ operator call
 //                                           │ │ │  object O2: Some
 //                                           │ │ │  │
         override fun check(y: Some): Boolean = y == O2