Do not override collection stub, if the override is suspend

but the stub is not. The other way around should be OK.

 #KT-52237 Fixed

compiler/testData/codegen/box/coroutines/bridges/mapSuspendAbstractClear.kt

@@ -0,0 +1,54 @@
+// WITH_STDLIB
+
+import kotlin.coroutines.*
+
+abstract class SuspendingMutableMap<K : Any, V : Any>(
+    protected val map: MutableMap<K, V>,
+) : Map<K, V> {
+    abstract suspend fun clear()
+
+    override val entries: Set<Map.Entry<K, V>>
+        get() = TODO("Not yet implemented")
+    override val keys: Set<K>
+        get() = TODO("Not yet implemented")
+    override val size: Int
+        get() = TODO("Not yet implemented")
+    override val values: Collection<V>
+        get() = TODO("Not yet implemented")
+
+    override fun isEmpty(): Boolean {
+        TODO("Not yet implemented")
+    }
+
+    override fun get(key: K): V? {
+        TODO("Not yet implemented")
+    }
+
+    override fun containsValue(value: V): Boolean {
+        TODO("Not yet implemented")
+    }
+
+    override fun containsKey(key: K): Boolean {
+        TODO("Not yet implemented")
+    }
+}
+
+fun builder(c: suspend () -> Unit) {
+    c.startCoroutine(Continuation(EmptyCoroutineContext) {
+        it.getOrThrow()
+    })
+}
+
+fun box(): String {
+    builder {
+        val m = mutableMapOf(1 to 1)
+        val map = object: SuspendingMutableMap<Int, Int>(m) {
+            override suspend fun clear() {
+                map.clear()
+            }
+        }
+        map.clear()
+        if (m.isNotEmpty()) error ("FAIL")
+    }
+    return "OK"
+}

compiler/testData/codegen/box/coroutines/bridges/mapSuspendClear.kt

@@ -0,0 +1,52 @@
+// WITH_STDLIB
+
+import kotlin.coroutines.*
+
+class SuspendingMutableMap<K : Any, V : Any>(
+    private val map: MutableMap<K, V>,
+) : Map<K, V> {
+    suspend fun clear() {
+        map.clear()
+    }
+
+    override val entries: Set<Map.Entry<K, V>>
+        get() = TODO("Not yet implemented")
+    override val keys: Set<K>
+        get() = TODO("Not yet implemented")
+    override val size: Int
+        get() = TODO("Not yet implemented")
+    override val values: Collection<V>
+        get() = TODO("Not yet implemented")
+
+    override fun isEmpty(): Boolean {
+        TODO("Not yet implemented")
+    }
+
+    override fun get(key: K): V? {
+        TODO("Not yet implemented")
+    }
+
+    override fun containsValue(value: V): Boolean {
+        TODO("Not yet implemented")
+    }
+
+    override fun containsKey(key: K): Boolean {
+        TODO("Not yet implemented")
+    }
+}
+
+fun builder(c: suspend () -> Unit) {
+    c.startCoroutine(Continuation(EmptyCoroutineContext) {
+        it.getOrThrow()
+    })
+}
+
+fun box(): String {
+    builder {
+        val m = mutableMapOf(1 to 1)
+        val map = SuspendingMutableMap(m)
+        map.clear()
+        if (m.isNotEmpty()) error ("FAIL")
+    }
+    return "OK"
+}