Check errors in Intentions tests by default

idea/testData/intentions/convertReceiverToParameter/genericReceiver.kt

@@ -1,5 +1,3 @@
-// CHECK_ERRORS_AFTER
-
 fun <T> <caret>T.bar() {
     toString()
 }

idea/testData/intentions/convertReceiverToParameter/genericReceiver.kt.after

@@ -1,5 +1,3 @@
-// CHECK_ERRORS_AFTER
-
 fun <T> bar(t: T) {
     t.toString()
 }

idea/tests/org/jetbrains/kotlin/idea/intentions/AbstractIntentionTest.java

@@ -126,7 +126,7 @@ public abstract class AbstractIntentionTest extends KotlinCodeInsightTestCase {
 
             doTestFor(pathToFile, intentionAction, fileText);
 
-            if (InTextDirectivesUtils.isDirectiveDefined(fileText, "// CHECK_ERRORS_AFTER")) {
+            if (getFile() instanceof KtFile && !InTextDirectivesUtils.isDirectiveDefined(fileText, "// SKIP_ERRORS_AFTER")) {
                 DirectiveBasedActionUtils.INSTANCE$.checkForUnexpectedErrors((KtFile) getFile());
             }
         }