diff --git a/compiler/testData/diagnostics/tests/java8Overrides/kt45508.fir.kt b/compiler/testData/diagnostics/tests/java8Overrides/kt45508.fir.kt
deleted file mode 100644
index 74799931c57..00000000000
--- a/compiler/testData/diagnostics/tests/java8Overrides/kt45508.fir.kt
+++ /dev/null
@@ -1,29 +0,0 @@
-interface A {
-    fun foo(): Any
-}
-
-interface B {
-    fun foo(): String = "A"
-}
-
-open class D: B
-
-open <!MANY_INTERFACES_MEMBER_NOT_IMPLEMENTED!>class C<!>: D(), A
-
-// ------------
-
-<!MANY_INTERFACES_MEMBER_NOT_IMPLEMENTED!>class Test<!>: Impl(), CProvider
-
-open class CC
-
-class DD: CC()
-
-interface CProvider {
-    fun getC(): CC
-}
-
-interface DProvider {
-    fun getC(): DD = DD()
-}
-
-open class Impl: DProvider
diff --git a/compiler/testData/diagnostics/tests/typealias/boundsViolationInDeepTypeAliasExpansion.kt b/compiler/testData/diagnostics/tests/typealias/boundsViolationInDeepTypeAliasExpansion.kt
index 87e7208a5da..7ae8cec917e 100644
--- a/compiler/testData/diagnostics/tests/typealias/boundsViolationInDeepTypeAliasExpansion.kt
+++ b/compiler/testData/diagnostics/tests/typealias/boundsViolationInDeepTypeAliasExpansion.kt
@@ -1,4 +1,3 @@
-// FIR_IDENTICAL
 // !DIAGNOSTICS: -UNUSED_VARIABLE -UNUSED_PARAMETER
 
 class TColl<T, C : Collection<T>>
diff --git a/compiler/testData/diagnostics/testsWithStdLib/coroutines/inference/kt41308.fir.fail b/compiler/testData/diagnostics/testsWithStdLib/coroutines/inference/kt41308.fir.fail
deleted file mode 100644
index 274b3d45f29..00000000000
--- a/compiler/testData/diagnostics/testsWithStdLib/coroutines/inference/kt41308.fir.fail
+++ /dev/null
@@ -1,7 +0,0 @@
-Failures detected in FirBodyResolveTransformerAdapter, file: /kt41308.fir.kt
-Cause: java.lang.RuntimeException: While resolving call R?C|kotlin/sequences/sequence|(<L> = sequence@fun R|kotlin/sequences/SequenceScope<Stub: TypeVariable(T)>|.<anonymous>(): R|kotlin/Unit| {
-    lval list: R|kotlin/collections/List<kotlin/String>?| = Null(null)
-    lval outputList: R|TypeVariable(K)| = R|<local>/list| ?: R?C|kotlin/collections/listOf|()
-    yieldAll#(R|<local>/outputList|)
-}
-)
diff --git a/compiler/testData/diagnostics/testsWithStdLib/coroutines/inference/kt41308.fir.kt b/compiler/testData/diagnostics/testsWithStdLib/coroutines/inference/kt41308.fir.kt
new file mode 100644
index 00000000000..7c990aac113
--- /dev/null
+++ b/compiler/testData/diagnostics/testsWithStdLib/coroutines/inference/kt41308.fir.kt
@@ -0,0 +1,9 @@
+// ISSUE: KT-41308, KT-47830
+
+fun main() {
+    sequence {
+        val list: List<String>? = null
+        val outputList = <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.collections.List<kotlin.String>")!>list ?: listOf()<!>
+        yieldAll(outputList)
+    }
+}
diff --git a/compiler/testData/diagnostics/testsWithStdLib/coroutines/inference/kt41308.kt b/compiler/testData/diagnostics/testsWithStdLib/coroutines/inference/kt41308.kt
index 955bf6863e0..98d61742273 100644
--- a/compiler/testData/diagnostics/testsWithStdLib/coroutines/inference/kt41308.kt
+++ b/compiler/testData/diagnostics/testsWithStdLib/coroutines/inference/kt41308.kt
@@ -1,4 +1,3 @@
-// FIR_IDENTICAL
 // ISSUE: KT-41308, KT-47830
 
 fun main() {