KT-1547 Wrong layout of closure classes

#KT-1547 fixed

compiler/testData/codegen/box/closures/closureOnTopLevel1.kt

@@ -0,0 +1,21 @@
+package test
+
+val p = { "OK" }()
+
+val getter: String
+    get() = { "OK" }()
+
+fun f() = { "OK" }()
+
+val obj = object : Function0<String>() {
+    override fun invoke() = "OK"
+}
+
+fun box(): String {
+    if (p != "OK") return "FAIL"
+    if (getter != "OK") return "FAIL"
+    if (f() != "OK") return "FAIL"
+    if (obj() != "OK") return "FAIL"
+
+    return "OK"
+}

compiler/testData/codegen/box/closures/closureOnTopLevel2.kt

@@ -0,0 +1,19 @@
+val p = { "OK" }()
+
+val getter: String
+    get() = { "OK" }()
+
+fun f() = { "OK" }()
+
+val obj = object : Function0<String>() {
+    override fun invoke() = "OK"
+}
+
+fun box(): String {
+    if (p != "OK") return "FAIL"
+    if (getter != "OK") return "FAIL"
+    if (f() != "OK") return "FAIL"
+    if (obj() != "OK") return "FAIL"
+
+    return "OK"
+}