Object literal expressions.

compiler/testData/ir/irText/classes/objectLiteralExpressions.kt

@@ -0,0 +1,28 @@
+interface IFoo {
+    fun foo()
+}
+
+val test1 = object {}
+
+val test2 = object : IFoo {
+    override fun foo() {
+        println("foo")
+    }
+}
+
+class Outer {
+    abstract inner class Inner : IFoo
+
+    fun test3() = object : Inner() {
+        override fun foo() {
+            println("foo")
+        }
+    }
+}
+
+fun Outer.test4() =
+        object : Outer.Inner() {
+            override fun foo() {
+                println("foo")
+            }
+        }