Value Classes: Forbid var properties with value class receivers

compiler/testData/diagnostics/tests/inlineClasses/varPropertyWithInlineClassReceiver.fir.kt

@@ -0,0 +1,12 @@
+// !LANGUAGE: +InlineClasses
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+
+inline class IC(val a: Any) {
+    var member: Any
+        get() = a
+        set(value) {}
+}
+
+var IC.extension: Any
+    get() = a
+    set(value) {}