Dump absent type arguments

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

@@ -55,6 +55,7 @@ FILE /dataClassMembers.kt
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='copy(T = ..., String = ...): Test<T>'
           CALL 'constructor Test(T, String = ...)' type=Test<T> origin=null
+            <T>: null
             x: GET_VAR 'value-parameter x: T = ...' type=T origin=null
             y: GET_VAR 'value-parameter y: String = ...' type=kotlin.String origin=null
     FUN GENERATED_DATA_CLASS_MEMBER public open override fun toString(): kotlin.String

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

@@ -38,6 +38,7 @@ FILE /delegatedMembers.kt
       VALUE_PARAMETER value-parameter x: X
       BLOCK_BODY
         CALL 'qux(TT, X): Unit' type=kotlin.Unit origin=null
+          <X>: null
           $this: GET_FIELD '`Test$IBase$delegate`: IBase<TT>' type=IBase<TT> origin=null
             receiver: GET_VAR 'this@Test: Test<TT>' type=Test<TT> origin=null
           t: GET_VAR 'value-parameter t: TT' type=TT origin=null