Put 'thisReceiver' declaration in class

Interfaces also have 'thisReceiver'

compiler/testData/ir/irText/declarations/parameters/delegatedMembers.txt

@@ -1,5 +1,6 @@
 FILE /delegatedMembers.kt
   CLASS INTERFACE IBase
+    $this: VALUE_PARAMETER this@IBase: IBase<T>
     TYPE_PARAMETER <T>
     FUN public abstract fun foo(x: kotlin.Int): kotlin.Unit
       $this: VALUE_PARAMETER this@IBase: IBase<T>
@@ -16,7 +17,7 @@ FILE /delegatedMembers.kt
     FUN FAKE_OVERRIDE public open override fun hashCode(): kotlin.Int
     FUN FAKE_OVERRIDE public open override fun toString(): kotlin.String
   CLASS CLASS Test
-    $new: VALUE_PARAMETER this@Test: Test<TT>
+    $this: VALUE_PARAMETER this@Test: Test<TT>
     TYPE_PARAMETER <TT>
     CONSTRUCTOR public constructor Test<TT>(impl: IBase<TT>)
       VALUE_PARAMETER value-parameter impl: IBase<TT>