[K/Wasm] Fix object optimization false trigger on non-pure objects ^KT-66471 Fixed

compiler/testData/codegen/box/callableReference/interfaceMethodReference.kt

@@ -0,0 +1,21 @@
+// KT-66471
+
+interface TestInterface {
+    fun foo()
+}
+
+var result: Any? = "Fail: not initialized"
+
+object TestObject {
+    private val test = run {
+        result = TestInterface::foo
+        "OK"
+    }
+
+    fun bar() {}
+}
+
+fun box(): String {
+    TestObject.bar()
+    return if (result is Function<*>) "OK" else result.toString()
+}