Minor. Add tests

compiler/testData/codegen/box/inlineClasses/callableReferences/inlineClassPrimaryValGeneric.kt

@@ -0,0 +1,20 @@
+// WITH_STDLIB
+// WORKS_WHEN_VALUE_CLASS
+// LANGUAGE: +ValueClasses, +GenericInlineClassParameter
+
+OPTIONAL_JVM_INLINE_ANNOTATION
+value class Z<T: Int>(val x: T)
+
+OPTIONAL_JVM_INLINE_ANNOTATION
+value class L<T: Long>(val x: T)
+
+OPTIONAL_JVM_INLINE_ANNOTATION
+value class S<T: String>(val x: T)
+
+fun box(): String {
+    if ((Z<Int>::x).get(Z(42)) != 42) throw AssertionError()
+    if ((L<Long>::x).get(L(1234L)) != 1234L) throw AssertionError()
+    if ((S<String>::x).get(S("abcdef")) != "abcdef") throw AssertionError()
+
+    return "OK"
+}