diff --git a/idea/testData/compilerMessages/k2js/helloWorld/src/test.kt b/idea/testData/compilerMessages/k2js/helloWorld/src/test.kt
deleted file mode 100644
index fcb084924f6..00000000000
--- a/idea/testData/compilerMessages/k2js/helloWorld/src/test.kt
+++ /dev/null
@@ -1,3 +0,0 @@
-package foo
-
-fun main(args : Array<String>) {}
diff --git a/idea/testData/compilerMessages/k2js/lib/src/lib.zip b/idea/testData/compilerMessages/k2js/lib/src/lib.zip
deleted file mode 100644
index 77d73e6814c..00000000000
Binary files a/idea/testData/compilerMessages/k2js/lib/src/lib.zip and /dev/null differ
diff --git a/idea/testData/compilerMessages/k2js/lib/src/test.kt b/idea/testData/compilerMessages/k2js/lib/src/test.kt
deleted file mode 100644
index 8248ddb6c6d..00000000000
--- a/idea/testData/compilerMessages/k2js/lib/src/test.kt
+++ /dev/null
@@ -1,8 +0,0 @@
-package foo
-
-import js.*
-
-fun main(args : Array<String>) {
-  val c = 4 + libf()
-  c == 2
-}
diff --git a/idea/testData/compilerMessages/k2js/simpleError/src/test.kt b/idea/testData/compilerMessages/k2js/simpleError/src/test.kt
deleted file mode 100644
index 278695cc22b..00000000000
--- a/idea/testData/compilerMessages/k2js/simpleError/src/test.kt
+++ /dev/null
@@ -1,5 +0,0 @@
-package foo
-
-fun f() : Boolean {
-
-}
diff --git a/idea/testData/compilerMessages/k2js/simpleWarning/src/test.kt b/idea/testData/compilerMessages/k2js/simpleWarning/src/test.kt
deleted file mode 100644
index cb90adc9552..00000000000
--- a/idea/testData/compilerMessages/k2js/simpleWarning/src/test.kt
+++ /dev/null
@@ -1,5 +0,0 @@
-fun main(args : Array<String>) {
-  val t = 0
-  if (t != null) {
-  }
-}
diff --git a/idea/testData/compilerMessages/k2jvm/helloWorld/src/test.kt b/idea/testData/compilerMessages/k2jvm/helloWorld/src/test.kt
deleted file mode 100644
index fcb084924f6..00000000000
--- a/idea/testData/compilerMessages/k2jvm/helloWorld/src/test.kt
+++ /dev/null
@@ -1,3 +0,0 @@
-package foo
-
-fun main(args : Array<String>) {}
diff --git a/idea/testData/compilerMessages/k2jvm/simpleError/src/test.kt b/idea/testData/compilerMessages/k2jvm/simpleError/src/test.kt
deleted file mode 100644
index 278695cc22b..00000000000
--- a/idea/testData/compilerMessages/k2jvm/simpleError/src/test.kt
+++ /dev/null
@@ -1,5 +0,0 @@
-package foo
-
-fun f() : Boolean {
-
-}
diff --git a/idea/testData/compilerMessages/k2jvm/simpleWarning/src/test.kt b/idea/testData/compilerMessages/k2jvm/simpleWarning/src/test.kt
deleted file mode 100644
index 4c54b4c192c..00000000000
--- a/idea/testData/compilerMessages/k2jvm/simpleWarning/src/test.kt
+++ /dev/null
@@ -1,5 +0,0 @@
-package foo
-
-fun f(s : String) {
-  s!!
-}
diff --git a/idea/testData/compilerMessages/k2jvm/visibilityError/src/test.kt b/idea/testData/compilerMessages/k2jvm/visibilityError/src/test.kt
deleted file mode 100644
index 169a6ae276f..00000000000
--- a/idea/testData/compilerMessages/k2jvm/visibilityError/src/test.kt
+++ /dev/null
@@ -1,8 +0,0 @@
-public interface TestTrait {
-    public fun f()
-}
-
-class Test: TestTrait {
-    fun f() = 12
-}
-