diff --git a/compiler/testData/codegen/regressions/kt606.kt b/compiler/testData/codegen/regressions/kt606.kt
index f2e00fb0fb2..83dc0b6f83d 100644
--- a/compiler/testData/codegen/regressions/kt606.kt
+++ b/compiler/testData/codegen/regressions/kt606.kt
@@ -1,3 +1,7 @@
+package kt606
+
+//KT-606 wrong resolved call
+
 class StandardPipelineFactory(val config : ChannelPipeline.() -> Unit) : ChannelPipelineFactory {
     override fun getPipeline() : ChannelPipeline {
         val pipeline : ChannelPipeline = DefaultChannelPipeline()
@@ -19,7 +23,43 @@ trait ChannelPipelineFactory {
     fun getPipeline() : ChannelPipeline
 }
 
-fun box() : String {
+fun testKt606() {
     StandardPipelineFactory({ print("OK") }).getPipeline()
+}
+
+//Tests for duplicates
+//KT-1061 Can't call function defined as a val
+object X {
+    val doit = { (i: Int) -> i }
+}
+
+fun testKt1061() : String = if (X.doit(3) == 3) "OK" else "fail"
+
+
+//KT-1249 IllegalStateException invoking function property
+class TestClass(val body : () -> Unit) : Any {
+    fun run() {
+        body()
+    }
+}
+
+fun testKt1249() {
+    TestClass({}).run()
+}
+
+class Foo<T>(val filter: (T) -> Boolean) {
+    public fun bar(tee: T) : Boolean {
+        return filter(tee);
+    }
+}
+
+//KT-1290 Method property in constructor causes NPE
+fun testKt1290() = Foo({ (i: Int) -> i < 5 }).bar(2)
+
+fun box() : String {
+    testKt606()
+    testKt1061()
+    testKt1249()
+    if (!testKt1290()) return "fail"
     return "OK"
-}
\ No newline at end of file
+}
diff --git a/compiler/testData/diagnostics/tests/regressions/kt1489_1728.jet b/compiler/testData/diagnostics/tests/regressions/kt1489_1728.jet
new file mode 100644
index 00000000000..cc3e7c771d2
--- /dev/null
+++ b/compiler/testData/diagnostics/tests/regressions/kt1489_1728.jet
@@ -0,0 +1,30 @@
+package kt606_dependents
+
+//KT-1489 Code analyzer fails with assertion
+trait AutoCloseable{
+    fun close()
+}
+
+class C {
+    class Resource : AutoCloseable {
+        override fun close() {
+            throw UnsupportedOperationException()
+        }
+    }
+
+    fun foo<X : AutoCloseable>(<!UNUSED_PARAMETER!>x<!> : X, <!UNUSED_PARAMETER!>body<!> : (X) -> Unit) {
+    }
+
+    fun p() : Resource? = null
+
+    fun bar() {
+        <!TYPE_INFERENCE_FAILED!>foo(<!TYPE_MISMATCH!>p()<!>) {
+
+        }<!>
+    }
+}
+
+//KT-1728 Can't invoke extension property as a function
+
+val Int.ext : () -> Int = { 5 }
+val x = 1.ext()
\ No newline at end of file