Add line marker test for sealed classes #KT-20043 Fixed

idea/testData/multiModuleLineMarker/fromExpectedSealedClass/common/common.kt

@@ -0,0 +1,9 @@
+expect sealed class <lineMarker>Sealed</lineMarker> {
+
+    object <lineMarker>Sealed1</lineMarker> : Sealed
+
+    class <lineMarker>Sealed2</lineMarker> : Sealed {
+        val <lineMarker>x</lineMarker>: Int
+        fun <lineMarker>foo</lineMarker>(): String
+    }
+}

idea/testData/multiModuleLineMarker/fromExpectedSealedClass/jvm/jvm.kt

@@ -0,0 +1,13 @@
+// !CHECK_HIGHLIGHTING
+
+actual sealed class Sealed {
+
+    actual object Sealed1 : Sealed()
+
+    actual class Sealed2 : Sealed() {
+        actual val x = 42
+        actual fun foo() = ""
+    }
+}
+
+