diff --git a/compiler/testData/diagnostics/tests/enum/compareTwoDifferentEnums.fir.kt b/compiler/testData/diagnostics/tests/enum/compareTwoDifferentEnums.fir.kt
index b07eaeb661f..fa44fd0b0ae 100644
--- a/compiler/testData/diagnostics/tests/enum/compareTwoDifferentEnums.fir.kt
+++ b/compiler/testData/diagnostics/tests/enum/compareTwoDifferentEnums.fir.kt
@@ -1,3 +1,4 @@
+// !LANGUAGE: -ProhibitComparisonOfIncompatibleEnums
 // FILE: JavaEnumA.java
 
 public enum JavaEnumA {}
diff --git a/compiler/testData/diagnostics/tests/enum/compareTwoDifferentEnums.kt b/compiler/testData/diagnostics/tests/enum/compareTwoDifferentEnums.kt
index d356d91620e..b8cb5d9b3a1 100644
--- a/compiler/testData/diagnostics/tests/enum/compareTwoDifferentEnums.kt
+++ b/compiler/testData/diagnostics/tests/enum/compareTwoDifferentEnums.kt
@@ -1,3 +1,4 @@
+// !LANGUAGE: -ProhibitComparisonOfIncompatibleEnums
 // FILE: JavaEnumA.java
 
 public enum JavaEnumA {}
diff --git a/compiler/testData/diagnostics/tests/enum/incompatibleEnumEntryClasses.fir.kt b/compiler/testData/diagnostics/tests/enum/incompatibleEnumEntryClasses.fir.kt
index 18fc2855e85..b6ca0f8a11c 100644
--- a/compiler/testData/diagnostics/tests/enum/incompatibleEnumEntryClasses.fir.kt
+++ b/compiler/testData/diagnostics/tests/enum/incompatibleEnumEntryClasses.fir.kt
@@ -1,3 +1,5 @@
+// !LANGUAGE: -ProhibitComparisonOfIncompatibleEnums
+
 interface I {
     fun foo()
 }
diff --git a/compiler/testData/diagnostics/tests/enum/incompatibleEnumEntryClasses.kt b/compiler/testData/diagnostics/tests/enum/incompatibleEnumEntryClasses.kt
index b5ccf69c342..d206c690a01 100644
--- a/compiler/testData/diagnostics/tests/enum/incompatibleEnumEntryClasses.kt
+++ b/compiler/testData/diagnostics/tests/enum/incompatibleEnumEntryClasses.kt
@@ -1,3 +1,5 @@
+// !LANGUAGE: -ProhibitComparisonOfIncompatibleEnums
+
 interface I {
     fun foo()
 }
diff --git a/compiler/testData/diagnostics/tests/generics/protectedSuperCall.fir.kt b/compiler/testData/diagnostics/tests/generics/protectedSuperCall.fir.kt
index 7b2439480e9..0b6114cd802 100644
--- a/compiler/testData/diagnostics/tests/generics/protectedSuperCall.fir.kt
+++ b/compiler/testData/diagnostics/tests/generics/protectedSuperCall.fir.kt
@@ -1,4 +1,5 @@
 // !WITH_NEW_INFERENCE
+// !DIAGNOSTICS: -UNUSED_PARAMETER
 // FILE: GA.kt
 
 package test.x
diff --git a/compiler/testData/diagnostics/tests/generics/protectedSuperCall.kt b/compiler/testData/diagnostics/tests/generics/protectedSuperCall.kt
index 6efa70f0d1c..01d9838004e 100644
--- a/compiler/testData/diagnostics/tests/generics/protectedSuperCall.kt
+++ b/compiler/testData/diagnostics/tests/generics/protectedSuperCall.kt
@@ -1,4 +1,5 @@
 // !WITH_NEW_INFERENCE
+// !DIAGNOSTICS: -UNUSED_PARAMETER
 // FILE: GA.kt
 
 package test.x
diff --git a/compiler/testData/diagnostics/tests/inference/regressions/kt2057.fir.kt b/compiler/testData/diagnostics/tests/inference/regressions/kt2057.fir.kt
index 27e53675870..f9d3fdbe345 100644
--- a/compiler/testData/diagnostics/tests/inference/regressions/kt2057.fir.kt
+++ b/compiler/testData/diagnostics/tests/inference/regressions/kt2057.fir.kt
@@ -1,3 +1,4 @@
+// !LANGUAGE: -TrailingCommas
 // !DIAGNOSTICS: -UNUSED_PARAMETER
 
 import java.util.ArrayList
diff --git a/compiler/testData/diagnostics/tests/inference/regressions/kt2057.kt b/compiler/testData/diagnostics/tests/inference/regressions/kt2057.kt
index ed01ef5fc9a..0a8b50415f2 100644
--- a/compiler/testData/diagnostics/tests/inference/regressions/kt2057.kt
+++ b/compiler/testData/diagnostics/tests/inference/regressions/kt2057.kt
@@ -1,3 +1,4 @@
+// !LANGUAGE: -TrailingCommas
 // !DIAGNOSTICS: -UNUSED_PARAMETER
 
 import java.util.ArrayList
diff --git a/compiler/testData/diagnostics/tests/multiplatform/defaultArguments/annotationsViaActualTypeAlias2.fir.kt b/compiler/testData/diagnostics/tests/multiplatform/defaultArguments/annotationsViaActualTypeAlias2.fir.kt
index 71e75036b5c..5d69200f014 100644
--- a/compiler/testData/diagnostics/tests/multiplatform/defaultArguments/annotationsViaActualTypeAlias2.fir.kt
+++ b/compiler/testData/diagnostics/tests/multiplatform/defaultArguments/annotationsViaActualTypeAlias2.fir.kt
@@ -1,4 +1,4 @@
-// !LANGUAGE: +MultiPlatformProjects
+// !LANGUAGE: +MultiPlatformProjects -ProhibitGenericArrayClassLiteral
 // MODULE: m1-common
 // FILE: common.kt
 
diff --git a/compiler/testData/diagnostics/tests/multiplatform/defaultArguments/annotationsViaActualTypeAlias2.kt b/compiler/testData/diagnostics/tests/multiplatform/defaultArguments/annotationsViaActualTypeAlias2.kt
index 71e75036b5c..5d69200f014 100644
--- a/compiler/testData/diagnostics/tests/multiplatform/defaultArguments/annotationsViaActualTypeAlias2.kt
+++ b/compiler/testData/diagnostics/tests/multiplatform/defaultArguments/annotationsViaActualTypeAlias2.kt
@@ -1,4 +1,4 @@
-// !LANGUAGE: +MultiPlatformProjects
+// !LANGUAGE: +MultiPlatformProjects -ProhibitGenericArrayClassLiteral
 // MODULE: m1-common
 // FILE: common.kt