diff --git a/compiler/testData/codegen/box/ieee754/nullableDoubleEquals10.kt b/compiler/testData/codegen/box/ieee754/nullableDoubleEquals10.kt
index aec2421eaa9..e1a6605570b 100644
--- a/compiler/testData/codegen/box/ieee754/nullableDoubleEquals10.kt
+++ b/compiler/testData/codegen/box/ieee754/nullableDoubleEquals10.kt
@@ -1,4 +1,5 @@
-// LANGUAGE_VERSION: 1.0
+// !API_VERSION: 1.0
+
 fun myEquals(a: Double?, b: Double?) = a == b
 
 fun myEquals1(a: Double?, b: Double) = a == b
@@ -23,4 +24,4 @@ fun box(): String {
     if (!myEquals0(0.0, 0.0)) return "fail 9"
 
     return "OK"
-}
\ No newline at end of file
+}
diff --git a/compiler/testData/codegen/box/ieee754/nullableDoubleEqualsLV13.kt b/compiler/testData/codegen/box/ieee754/nullableDoubleEqualsLV13.kt
index 62ff31cea93..42bc32ee52c 100644
--- a/compiler/testData/codegen/box/ieee754/nullableDoubleEqualsLV13.kt
+++ b/compiler/testData/codegen/box/ieee754/nullableDoubleEqualsLV13.kt
@@ -1,5 +1,3 @@
-// LANGUAGE_VERSION: 1.3
-
 fun myEquals(a: Double?, b: Double?) = a == b
 
 fun myEquals1(a: Double?, b: Double) = a == b
@@ -24,4 +22,4 @@ fun box(): String {
     if (!myEquals0(0.0, 0.0)) return "fail 9"
 
     return "OK"
-}
\ No newline at end of file
+}
diff --git a/compiler/testData/codegen/box/ieee754/nullableDoubleNotEquals10.kt b/compiler/testData/codegen/box/ieee754/nullableDoubleNotEquals10.kt
index 7ec29384f5a..bbe5a8ab196 100644
--- a/compiler/testData/codegen/box/ieee754/nullableDoubleNotEquals10.kt
+++ b/compiler/testData/codegen/box/ieee754/nullableDoubleNotEquals10.kt
@@ -1,4 +1,5 @@
-// LANGUAGE_VERSION: 1.0
+// !API_VERSION: 1.0
+
 fun myNotEquals(a: Double?, b: Double?) = a != b
 
 fun myNotEquals1(a: Double?, b: Double) = a != b
@@ -23,4 +24,4 @@ fun box(): String {
     if (myNotEquals0(0.0, 0.0)) return "fail 9"
 
     return "OK"
-}
\ No newline at end of file
+}
diff --git a/compiler/testData/codegen/box/ieee754/nullableFloatEquals10.kt b/compiler/testData/codegen/box/ieee754/nullableFloatEquals10.kt
index b6899058120..24cd16fb594 100644
--- a/compiler/testData/codegen/box/ieee754/nullableFloatEquals10.kt
+++ b/compiler/testData/codegen/box/ieee754/nullableFloatEquals10.kt
@@ -1,4 +1,5 @@
-// LANGUAGE_VERSION: 1.0
+// !API_VERSION: 1.0
+
 fun myEquals(a: Float?, b: Float?) = a == b
 
 fun myEquals1(a: Float?, b: Float) = a == b
@@ -23,4 +24,4 @@ fun box(): String {
     if (!myEquals0(0.0F, 0.0F)) return "fail 9"
 
     return "OK"
-}
\ No newline at end of file
+}
diff --git a/compiler/testData/codegen/box/ieee754/nullableFloatNotEquals10.kt b/compiler/testData/codegen/box/ieee754/nullableFloatNotEquals10.kt
index a9eeb821db4..ce2657cbe19 100644
--- a/compiler/testData/codegen/box/ieee754/nullableFloatNotEquals10.kt
+++ b/compiler/testData/codegen/box/ieee754/nullableFloatNotEquals10.kt
@@ -1,4 +1,5 @@
-// LANGUAGE_VERSION: 1.0
+// !API_VERSION: 1.0
+
 fun myNotEquals(a: Float?, b: Float?) = a != b
 
 fun myNotEquals1(a: Float?, b: Float) = a != b
@@ -23,4 +24,4 @@ fun box(): String {
     if (myNotEquals0(0.0F, 0.0F)) return "fail 9"
 
     return "OK"
-}
\ No newline at end of file
+}
diff --git a/compiler/testData/codegen/box/ieee754/when10.kt b/compiler/testData/codegen/box/ieee754/when10.kt
index 13f512ed039..7c241185b1f 100644
--- a/compiler/testData/codegen/box/ieee754/when10.kt
+++ b/compiler/testData/codegen/box/ieee754/when10.kt
@@ -1,7 +1,7 @@
+// !API_VERSION: 1.0
 // IGNORE_BACKEND: NATIVE
 // IGNORE_BACKEND: JVM_IR
 // IGNORE_BACKEND: JS_IR
-// LANGUAGE_VERSION: 1.0
 
 fun box(): String {
     val plusZero: Any = 0.0
@@ -32,4 +32,4 @@ fun box(): String {
     }
 
     return "OK"
-}
\ No newline at end of file
+}
diff --git a/compiler/testData/codegen/box/ieee754/whenNullableSmartCast10.kt b/compiler/testData/codegen/box/ieee754/whenNullableSmartCast10.kt
index f497a7468b6..6db9a8bccea 100644
--- a/compiler/testData/codegen/box/ieee754/whenNullableSmartCast10.kt
+++ b/compiler/testData/codegen/box/ieee754/whenNullableSmartCast10.kt
@@ -1,4 +1,5 @@
-// LANGUAGE_VERSION: 1.0
+// !API_VERSION: 1.0
+
 fun box(): String {
     val nullValue: Any? = null
     val nullDouble: Double? = null
diff --git a/compiler/testData/codegen/bytecodeText/ieee754/nullableDoubleEquals10.kt b/compiler/testData/codegen/bytecodeText/ieee754/nullableDoubleEquals10.kt
index 6dffd64b53d..c85ee6793b9 100644
--- a/compiler/testData/codegen/bytecodeText/ieee754/nullableDoubleEquals10.kt
+++ b/compiler/testData/codegen/bytecodeText/ieee754/nullableDoubleEquals10.kt
@@ -1,4 +1,4 @@
-// LANGUAGE_VERSION: 1.0
+// !API_VERSION: 1.0
 
 fun myEquals(a: Double?, b: Double?) = a == b
 
diff --git a/compiler/testData/codegen/bytecodeText/ieee754/nullableDoubleNotEquals10.kt b/compiler/testData/codegen/bytecodeText/ieee754/nullableDoubleNotEquals10.kt
index ca3718a9a48..eccf8822717 100644
--- a/compiler/testData/codegen/bytecodeText/ieee754/nullableDoubleNotEquals10.kt
+++ b/compiler/testData/codegen/bytecodeText/ieee754/nullableDoubleNotEquals10.kt
@@ -1,4 +1,5 @@
-// LANGUAGE_VERSION: 1.0
+// !API_VERSION: 1.0
+
 fun myNotEquals(a: Double?, b: Double?) = a != b
 
 fun myNotEquals1(a: Double?, b: Double) = a != b
diff --git a/compiler/testData/codegen/bytecodeText/ieee754/nullableFloatEquals10.kt b/compiler/testData/codegen/bytecodeText/ieee754/nullableFloatEquals10.kt
index 0ae95ebf757..d362657b066 100644
--- a/compiler/testData/codegen/bytecodeText/ieee754/nullableFloatEquals10.kt
+++ b/compiler/testData/codegen/bytecodeText/ieee754/nullableFloatEquals10.kt
@@ -1,4 +1,5 @@
-// LANGUAGE_VERSION: 1.0
+// !API_VERSION: 1.0
+
 fun myEquals(a: Float?, b: Float?) = a == b
 
 fun myEquals1(a: Float?, b: Float) = a == b
diff --git a/compiler/testData/codegen/bytecodeText/ieee754/nullableFloatNotEquals10.kt b/compiler/testData/codegen/bytecodeText/ieee754/nullableFloatNotEquals10.kt
index 75194d70a01..fa42ff1511c 100644
--- a/compiler/testData/codegen/bytecodeText/ieee754/nullableFloatNotEquals10.kt
+++ b/compiler/testData/codegen/bytecodeText/ieee754/nullableFloatNotEquals10.kt
@@ -1,4 +1,5 @@
-// LANGUAGE_VERSION: 1.0
+// !API_VERSION: 1.0
+
 fun myNotEquals(a: Float?, b: Float?) = a != b
 
 fun myNotEquals1(a: Float?, b: Float) = a != b
diff --git a/compiler/testData/codegen/bytecodeText/ieee754/smartCastsForDouble10.kt b/compiler/testData/codegen/bytecodeText/ieee754/smartCastsForDouble10.kt
index ff96a3d644b..f8df33f71ce 100644
--- a/compiler/testData/codegen/bytecodeText/ieee754/smartCastsForDouble10.kt
+++ b/compiler/testData/codegen/bytecodeText/ieee754/smartCastsForDouble10.kt
@@ -1,4 +1,4 @@
-// LANGUAGE_VERSION: 1.0
+// !API_VERSION: 1.0
 
 fun equals5(a: Any?, b: Any?) = if (a is Double && b is Double?) a == b else null!!
 
@@ -20,4 +20,4 @@ fun box(): String {
 }
 
 // 3 areEqual \(Ljava/lang/Object;Ljava/lang/Object;\)Z
-// 3 areEqual
\ No newline at end of file
+// 3 areEqual
diff --git a/compiler/testData/codegen/bytecodeText/ieee754/smartCastsForFloat10.kt b/compiler/testData/codegen/bytecodeText/ieee754/smartCastsForFloat10.kt
index 7c46cfa3e38..b2305921b35 100644
--- a/compiler/testData/codegen/bytecodeText/ieee754/smartCastsForFloat10.kt
+++ b/compiler/testData/codegen/bytecodeText/ieee754/smartCastsForFloat10.kt
@@ -1,4 +1,4 @@
-// LANGUAGE_VERSION: 1.0
+// !API_VERSION: 1.0
 
 fun equals5(a: Any?, b: Any?) = if (a is Float && b is Float?) a == b else null!!
 
@@ -20,4 +20,4 @@ fun box(): String {
 }
 
 // 3 areEqual \(Ljava/lang/Object;Ljava/lang/Object;\)Z
-// 3 areEqual
\ No newline at end of file
+// 3 areEqual
diff --git a/compiler/testData/codegen/bytecodeText/ieee754/when10.kt b/compiler/testData/codegen/bytecodeText/ieee754/when10.kt
index 34a589e9fd6..7e24c887fcb 100644
--- a/compiler/testData/codegen/bytecodeText/ieee754/when10.kt
+++ b/compiler/testData/codegen/bytecodeText/ieee754/when10.kt
@@ -1,4 +1,5 @@
-// LANGUAGE_VERSION: 1.0
+// !API_VERSION: 1.0
+
 fun box(): String {
     val plusZero: Any = 0.0
     val minusZero: Any = -0.0
@@ -29,4 +30,4 @@ fun box(): String {
 }
 
 // 4 areEqual \(Ljava/lang/Object;Ljava/lang/Object;\)Z
-// 4 areEqual
\ No newline at end of file
+// 4 areEqual
diff --git a/compiler/testData/codegen/bytecodeText/ieee754/whenNullableSmartCast10.kt b/compiler/testData/codegen/bytecodeText/ieee754/whenNullableSmartCast10.kt
index 678021ae10a..77c857700e8 100644
--- a/compiler/testData/codegen/bytecodeText/ieee754/whenNullableSmartCast10.kt
+++ b/compiler/testData/codegen/bytecodeText/ieee754/whenNullableSmartCast10.kt
@@ -1,4 +1,5 @@
-// LANGUAGE_VERSION: 1.0
+// !API_VERSION: 1.0
+
 fun box(): String {
     val nullValue: Any? = null
     val nullDouble: Double? = null
@@ -26,5 +27,6 @@ fun box(): String {
     }
     return "OK"
 }
+
 // 4 areEqual \(Ljava/lang/Object;Ljava/lang/Object;\)Z
 // 4 areEqual