Minor. Add regression test

#KT-45991

compiler/testData/codegen/box/inlineClasses/kt45991.kt

@@ -0,0 +1,56 @@
+// WITH_RUNTIME
+// KJS_WITH_FULL_RUNTIME
+// IGNORE_BACKEND: JVM
+// IGNORE_LIGHT_ANALYSIS
+
+var result = ""
+
+fun ex1_(res: Result<Int>) {
+    res.fold(
+        onSuccess = { result += "Ex $it\n" },
+        onFailure = {},
+    )
+}
+
+fun ex1(res: Result<Int>) {
+    res.fold(
+        onSuccess = { ex1_(res) },
+        onFailure = { ex1_(Result.failure(it)) }
+    )
+}
+
+val ex2_: (Result<Int>) -> Unit = { res ->
+    res.fold(
+        onSuccess = { result += "Ex $it\n" },
+        onFailure = {},
+    )
+}
+
+val ex2: (Result<Int>) -> Unit = { res ->
+    res.fold(
+        onSuccess = { ex2_(Result.success(it)) },
+        onFailure = { ex2_(Result.failure(it)) }
+    )
+}
+
+
+val ex3_: (Result<Int>) -> Unit = { res ->
+    res.fold(
+        onSuccess = { result += "Ex $it\n" },
+        onFailure = {},
+    )
+}
+
+val ex3: (Result<Int>) -> Unit = { res ->
+    res.fold(
+        onSuccess = { ex3_(res) },
+        onFailure = { ex3_(Result.failure(it)) }
+    )
+}
+
+fun box(): String {
+    ex1(Result.success(1))
+    ex2(Result.success(2))
+    ex3(Result.success(3))
+    return if (result == "Ex 1\nEx 2\nEx 3\n") "OK" else "FAIL $result"
+}