KT-50862 Add name property to KtSignature

See the KDoc of the property for the reasons why
it was created

analysis/analysis-api/testData/components/callResolver/resolveCall/indexedGet.txt

@@ -12,21 +12,25 @@ KtSuccessCallInfo:
         symbol = /C.get(<dispatch receiver>: C, a: kotlin.Int, b: kotlin.String): kotlin.Boolean
         valueParameters = [
           KtVariableLikeSignature:
+            name = a
             receiverType = null
             returnType = kotlin.Int
             symbol = a: kotlin.Int,
           KtVariableLikeSignature:
+            name = b
             receiverType = null
             returnType = kotlin.String
             symbol = b: kotlin.String
         ]
     argumentMapping = {
       1 -> (KtVariableLikeSignature:
+        name = a
         receiverType = null
         returnType = kotlin.Int
         symbol = a: kotlin.Int),
       "foo" -> (KtVariableLikeSignature:
+        name = b
         receiverType = null
         returnType = kotlin.String
         symbol = b: kotlin.String)
-    }
+    }