Check language feature support for local and top-level lateinit vars

compiler/testData/diagnostics/tests/properties/lateinitOnTopLevel.kt

@@ -1,3 +1,5 @@
+// !LANGUAGE: +LateinitTopLevelProperties
+
 object Delegate {
     operator fun getValue(instance: Any?, property: Any) : String = ""
     operator fun setValue(instance: Any?, property: Any, value: String) {}

compiler/testData/diagnostics/tests/properties/localLateinit/inapplicableLateinitModifier.kt

@@ -1,4 +1,5 @@
 // !DIAGNOSTICS: -UNUSED_VALUE -UNUSED_VARIABLE -ASSIGNED_BUT_NEVER_ACCESSED_VARIABLE
+// !LANGUAGE: +LateinitLocalVariables
 
 import kotlin.reflect.KProperty
 

compiler/testData/diagnostics/tests/properties/localLateinit/localLateinit.kt

@@ -1,3 +1,5 @@
+// !LANGUAGE: +LateinitLocalVariables
+
 fun test() {
     lateinit var s: String
     s = ""

compiler/testData/diagnostics/tests/properties/localLateinit/uninitialized.kt

@@ -1,3 +1,5 @@
+// !LANGUAGE: +LateinitLocalVariables
+
 fun test1() {
     lateinit var s: String
     s.length