Validate label value of coroutine in case of no suspension points

#KT-14718 Fixed

compiler/testData/codegen/box/coroutines/illegalState.kt

@@ -35,7 +35,27 @@ fun box(): String {
         return "fail 3"
     } catch (e: java.lang.IllegalStateException) {
         if (e.message != "call to 'resume' before 'invoke' with coroutine") return "fail 4: ${e.message!!}"
-        return "OK"
+    }
+
+    var result = "OK"
+
+    try {
+        builder1 {
+            result = "fail 5"
+        }
+        return "fail 6"
+    } catch (e: java.lang.IllegalStateException) {
+        if (e.message != "call to 'resume' before 'invoke' with coroutine") return "fail 7: ${e.message!!}"
+    }
+
+    try {
+        builder2 {
+            result = "fail 8"
+        }
+        return "fail 9"
+    } catch (e: java.lang.IllegalStateException) {
+        if (e.message != "call to 'resume' before 'invoke' with coroutine") return "fail 10: ${e.message!!}"
+        return result
     }
 
     return "fail"

compiler/testData/codegen/box/coroutines/noSuspensionPoints.kt

@@ -0,0 +1,26 @@
+class Controller {
+    var res = 0
+    operator fun handleResult(x: Int, y: Continuation<Nothing>) {
+        res = x
+    }
+}
+
+fun builder(coroutine c: Controller.() -> Continuation<Unit>): Int {
+    val controller = Controller()
+    c(controller).resume(Unit)
+
+    return controller.res
+}
+
+fun box(): String {
+    var result = ""
+
+    val handledResult = builder {
+        result = "OK"
+        56
+    }
+
+    if (handledResult != 56) return "fail 1: $handledResult"
+
+    return result
+}