diff --git a/compiler/testData/diagnostics/tests/inference/lambdaParameterTypeInElvis.fir.kt b/compiler/testData/diagnostics/tests/inference/lambdaParameterTypeInElvis.fir.kt
deleted file mode 100644
index 08cdc63c5a2..00000000000
--- a/compiler/testData/diagnostics/tests/inference/lambdaParameterTypeInElvis.fir.kt
+++ /dev/null
@@ -1,14 +0,0 @@
-// !DIAGNOSTICS: -UNUSED_PARAMETER -UNUSED_VARIABLE -UNREACHABLE_CODE
-
-interface Some {
-    fun method(): Unit
-}
-
-fun <S> elvis(nullable: S?, notNullable: S): S = TODO()
-
-fun <R : Some> Some.doWithPredicate(predicate: (R) -> Unit): R? = TODO()
-
-fun test(derived: Some) {
-    val expected: Some = derived.doWithPredicate { it.method() } ?: TODO()
-    val expected2: Some = elvis(derived.doWithPredicate { it.<!UNRESOLVED_REFERENCE!>method<!>() }, TODO())
-}
diff --git a/compiler/testData/diagnostics/tests/inference/lambdaParameterTypeInElvis.kt b/compiler/testData/diagnostics/tests/inference/lambdaParameterTypeInElvis.kt
index 8924f9b4924..a365e67ebef 100644
--- a/compiler/testData/diagnostics/tests/inference/lambdaParameterTypeInElvis.kt
+++ b/compiler/testData/diagnostics/tests/inference/lambdaParameterTypeInElvis.kt
@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // !DIAGNOSTICS: -UNUSED_PARAMETER -UNUSED_VARIABLE -UNREACHABLE_CODE
 
 interface Some {