Generate parameter declarations for fake overrides

compiler/testData/ir/irText/expressions/classReference.txt

@@ -6,8 +6,12 @@ FILE /classReference.kt
         DELEGATING_CONSTRUCTOR_CALL 'constructor Any()'
         INSTANCE_INITIALIZER_CALL classDescriptor='A'
     FUN FAKE_OVERRIDE public open override fun equals(other: kotlin.Any?): kotlin.Boolean
+      $this: VALUE_PARAMETER this@Any: Any
+      VALUE_PARAMETER value-parameter other: kotlin.Any?
     FUN FAKE_OVERRIDE public open override fun hashCode(): kotlin.Int
+      $this: VALUE_PARAMETER this@Any: Any
     FUN FAKE_OVERRIDE public open override fun toString(): kotlin.String
+      $this: VALUE_PARAMETER this@Any: Any
   FUN public fun test(): kotlin.Unit
     BLOCK_BODY
       TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
@@ -22,3 +26,4 @@ FILE /classReference.kt
         CALL '<get-java>() on KClass<out A>: Class<out A>' type=java.lang.Class<out A> origin=GET_PROPERTY
           $receiver: GET_CLASS type=kotlin.reflect.KClass<out A>
             CALL 'constructor A()' type=A origin=null
+