Use LanguageFeatureSettings instead of custom option for bound callable references

compiler/testData/diagnostics/tests/sourceCompatibility/noBoundCallableReferences/qualifiedJavaClassLiteralInKClassExtension.kt

@@ -0,0 +1,11 @@
+// !LANGUAGE: -BoundCallableReferences
+// !DIAGNOSTICS: -CAST_NEVER_SUCCEEDS
+
+import kotlin.reflect.KClass
+
+val <T : Any> KClass<T>.java: Class<T> get() = null!!
+
+val <T : Any> KClass<T>.javaObjectType: Class<T>
+    get() {
+        return java.lang.Class::class.java as Class<T>
+    }

compiler/testData/diagnostics/tests/sourceCompatibility/noBoundCallableReferences/qualifiedJavaClassLiteralInKClassExtension.txt

@@ -0,0 +1,4 @@
+package
+
+public val </*0*/ T : kotlin.Any> kotlin.reflect.KClass<T>.java: java.lang.Class<T>
+public val </*0*/ T : kotlin.Any> kotlin.reflect.KClass<T>.javaObjectType: java.lang.Class<T>

compiler/testData/diagnostics/tests/sourceCompatibility/noBoundCallableReferences/qualifiedJavaClassReferenceInKClassExtension.kt

@@ -0,0 +1,10 @@
+// !LANGUAGE: -BoundCallableReferences
+
+import kotlin.reflect.KClass
+
+val <T : Any> KClass<T>.java: Class<T> get() = null!!
+
+val <T : Any> KClass<T>.foo: Any?
+    get() {
+        return java.lang.Integer::hashCode
+    }

compiler/testData/diagnostics/tests/sourceCompatibility/noBoundCallableReferences/qualifiedJavaClassReferenceInKClassExtension.txt

@@ -0,0 +1,4 @@
+package
+
+public val </*0*/ T : kotlin.Any> kotlin.reflect.KClass<T>.foo: kotlin.Any?
+public val </*0*/ T : kotlin.Any> kotlin.reflect.KClass<T>.java: java.lang.Class<T>