Minor. Add more tests

compiler/testData/codegen/box/inlineClasses/inlineInCompanionGeneric.kt

@@ -0,0 +1,19 @@
+// TARGET_BACKEND: JVM_IR
+// WITH_STDLIB
+// WORKS_WHEN_VALUE_CLASS
+// LANGUAGE: +ValueClasses, +GenericInlineClassParameter
+// FILE: R.kt
+import kotlin.jvm.JvmInline
+
+OPTIONAL_JVM_INLINE_ANNOTATION
+value class R<T: String>(val value: T) {
+    companion object {
+        inline fun ok() = R("OK")
+    }
+}
+
+// FILE: test.kt
+
+fun box(): String = R.ok().value
+
+