Render receivers as 'this@owner: type'

Add test for generic inner class with generic outer class.

compiler/testData/ir/irText/singletons/object.txt

@@ -1,21 +1,21 @@
 FILE /object.kt
   CLASS OBJECT Z
-    $new: VALUE_PARAMETER <receiver: Z>
+    $new: VALUE_PARAMETER this@Z: Z
     CONSTRUCTOR private constructor Z()
       BLOCK_BODY
         DELEGATING_CONSTRUCTOR_CALL 'constructor Any()'
         INSTANCE_INITIALIZER_CALL classDescriptor='Z'
     FUN public final fun test(): kotlin.Unit
-      $this: VALUE_PARAMETER <receiver: Z>
+      $this: VALUE_PARAMETER this@Z: Z
       BLOCK_BODY
     CLASS CLASS A
-      $new: VALUE_PARAMETER <receiver: A>
+      $new: VALUE_PARAMETER this@A: A
       CONSTRUCTOR public constructor A()
         BLOCK_BODY
           DELEGATING_CONSTRUCTOR_CALL 'constructor Any()'
           INSTANCE_INITIALIZER_CALL classDescriptor='A'
       FUN public final fun test2(): kotlin.Unit
-        $this: VALUE_PARAMETER <receiver: A>
+        $this: VALUE_PARAMETER this@A: A
         BLOCK_BODY
           CALL 'test(): Unit' type=kotlin.Unit origin=null
             $this: GET_OBJECT 'Z' type=Z