Generating stub methods for read-only map and entry.

compiler/testData/codegen/box/builtinStubMethods/Map.kt

@@ -0,0 +1,30 @@
+class MyMap<K, V>: Map<K, V> {
+    override fun size(): Int = 0
+    override fun isEmpty(): Boolean = true
+    override fun containsKey(key: Any?): Boolean = false
+    override fun containsValue(value: Any?): Boolean = false
+    override fun get(key: Any?): V? = null
+    override fun keySet(): Set<K> = throw UnsupportedOperationException()
+    override fun values(): Collection<V> = throw UnsupportedOperationException()
+    override fun entrySet(): Set<Map.Entry<K, V>> = throw UnsupportedOperationException()
+}
+
+fun expectUoe(block: () -> Unit) {
+    try {
+        block()
+        throw AssertionError()
+    } catch (e: UnsupportedOperationException) {
+    }
+}
+
+fun box(): String {
+    val map = MyMap<String, Int>() as MutableMap<String, Int>
+
+    expectUoe { map.put("", 1) }
+    expectUoe { map.remove("") }
+    expectUoe { map.putAll(map) }
+    expectUoe { map.clear() }
+
+    return "OK"
+}
+

compiler/testData/codegen/box/builtinStubMethods/MapEntry.kt

@@ -0,0 +1,15 @@
+class MyMapEntry<K, V>: Map.Entry<K, V> {
+    override fun hashCode(): Int = 0
+    override fun equals(other: Any?): Boolean = false
+    override fun getKey(): K = throw UnsupportedOperationException()
+    override fun getValue(): V = throw UnsupportedOperationException()
+}
+
+fun box(): String {
+    try {
+        (MyMapEntry<String, Int>() as MutableMap.MutableEntry<String, Int>).setValue(1)
+        throw AssertionError()
+    } catch (e: UnsupportedOperationException) {
+        return "OK"
+    }
+}

compiler/testData/codegen/box/builtinStubMethods/MapEntryWithSetValue.kt

@@ -0,0 +1,14 @@
+class MyMapEntry<K, V>: Map.Entry<K, V> {
+    override fun hashCode(): Int = 0
+    override fun equals(other: Any?): Boolean = false
+    override fun getKey(): K = throw UnsupportedOperationException()
+    override fun getValue(): V = throw UnsupportedOperationException()
+
+    public fun setValue(value: V): V = value
+}
+
+fun box(): String {
+    (MyMapEntry<String, Int>() as MutableMap.MutableEntry<String, Int>).setValue(1)
+
+    return "OK"
+}

compiler/testData/codegen/box/builtinStubMethods/MapWithAllImplementations.kt

@@ -0,0 +1,27 @@
+class MyMap<K, V>: Map<K, V> {
+    override fun size(): Int = 0
+    override fun isEmpty(): Boolean = true
+    override fun containsKey(key: Any?): Boolean = false
+    override fun containsValue(value: Any?): Boolean = false
+    override fun get(key: Any?): V? = null
+    override fun keySet(): Set<K> = throw UnsupportedOperationException()
+    override fun values(): Collection<V> = throw UnsupportedOperationException()
+    override fun entrySet(): Set<Map.Entry<K, V>> = throw UnsupportedOperationException()
+
+    public fun put(key: K, value: V): V? = null
+    public fun remove(key: Any?): V? = null
+    public fun putAll(m: Map<out K, V>) {}
+    public fun clear() {}
+}
+
+fun box(): String {
+    val map = MyMap<String, Int>() as MutableMap<String, Int>
+
+    map.put("", 1)
+    map.remove("")
+    map.putAll(map)
+    map.clear()
+
+    return "OK"
+}
+