Disable write action for intention test start

2016.1 doesn't start actions by default and run isAvailable in pooled thread

With write action tests won't proccess as it's imposible to take read action from pooled thread.
Problem introduce in 3c97ae4c5c

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

@@ -142,6 +142,11 @@ public abstract class AbstractIntentionTest extends KotlinCodeInsightTestCase {
         }
     }
 
+    @Override
+    protected boolean isRunInWriteAction() {
+        return false;
+    }
+
     private void doTestFor(String mainFilePath, Map<String, PsiFile> pathToFiles, final IntentionAction intentionAction, String fileText) throws Exception {
         String isApplicableString = InTextDirectivesUtils.findStringWithPrefixes(fileText, "// IS_APPLICABLE: ");
         boolean isApplicableExpected = isApplicableString == null || isApplicableString.equals("true");