Fix super calls to suspend functions in abstract classes

compiler/testData/codegen/box/coroutines/suspendFunctionAsCoroutine/superCallAbstractClass.kt

@@ -0,0 +1,41 @@
+// WITH_RUNTIME
+// WITH_COROUTINES
+import helpers.*
+import kotlin.coroutines.experimental.*
+import kotlin.coroutines.experimental.intrinsics.*
+
+abstract class A(val v: String) {
+    suspend abstract fun foo(v: String): String
+
+    suspend fun suspendThere(v: String): String = suspendCoroutineOrReturn { x ->
+        x.resume(v)
+        COROUTINE_SUSPENDED
+    }
+
+    open suspend fun suspendHere(): String = foo("O") + suspendThere(v)
+}
+
+class B(v: String) : A(v) {
+    override suspend fun foo(v: String): String = suspendCoroutineOrReturn { x ->
+        x.resume(v)
+        COROUTINE_SUSPENDED
+    }
+
+    override suspend fun suspendHere(): String = super.suspendHere() + suspendThere("56")
+}
+
+fun builder(c: suspend A.() -> Unit) {
+    c.startCoroutine(B("K"), EmptyContinuation)
+}
+
+fun box(): String {
+    var result = ""
+
+    builder {
+        result = suspendHere()
+    }
+
+    if (result != "OK56") return "fail 1: $result"
+
+    return "OK"
+}