diff --git a/compiler/testData/diagnostics/tests/inference/regressions/kt44440.fir.kt b/compiler/testData/diagnostics/tests/inference/regressions/kt44440.fir.kt
deleted file mode 100644
index 5bfbe210324..00000000000
--- a/compiler/testData/diagnostics/tests/inference/regressions/kt44440.fir.kt
+++ /dev/null
@@ -1,21 +0,0 @@
-// !DIAGNOSTICS: -UNUSED_VARIABLE -UNUSED_PARAMETER -UNUSED_EXPRESSION
-
-interface I
-
-fun consume(x: WrapperFactory<Wrapper<I>>) {}
-
-fun test(x: I) {
-    val y = foo(x)
-    <!DEBUG_INFO_EXPRESSION_TYPE("WrapperFactory<Wrapper<I>>")!>y<!>
-    consume(y)
-}
-
-fun <CX: I> foo(
-    x: CX,
-    fn1: (CX) -> Unit = {},
-    fn2: (CX?) -> Unit = {}
-) = WrapperFactory { Wrapper(fn1, fn2) }
-
-class WrapperFactory<W>(val creator: () -> W)
-
-class Wrapper<in CX2>(val fn1: (CX2) -> Unit, val fn2: (CX2?) -> Unit)
diff --git a/compiler/testData/diagnostics/tests/inference/regressions/kt44440.kt b/compiler/testData/diagnostics/tests/inference/regressions/kt44440.kt
index 5bfbe210324..de3c8bf2fe6 100644
--- a/compiler/testData/diagnostics/tests/inference/regressions/kt44440.kt
+++ b/compiler/testData/diagnostics/tests/inference/regressions/kt44440.kt
@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // !DIAGNOSTICS: -UNUSED_VARIABLE -UNUSED_PARAMETER -UNUSED_EXPRESSION
 
 interface I