RegExp: check highlighting in quickfix tests too

RegExpSupport/test/org/intellij/lang/regexp/inspection/OctalEscapeInspectionTest.java

@@ -24,7 +24,7 @@ import org.jetbrains.annotations.NotNull;
 public class OctalEscapeInspectionTest extends RegExpInspectionTestCase {
 
   public void testSimple() {
-    quickfixTest("\\011<caret>", "\\x09", "Replace with '\\x09'");
+    quickfixTest("<warning descr=\"Octal escape '\\011' in RegExp\">\\011</warning>", "\\x09", "Replace with '\\x09'");
   }
 
   @NotNull

RegExpSupport/test/org/intellij/lang/regexp/inspection/RegExpInspectionTestCase.java

@@ -42,6 +42,7 @@ public abstract class RegExpInspectionTestCase extends LightPlatformCodeInsightF
   protected void quickfixTest(@Language("RegExp") String before, @Language("RegExp") String after, String hint) {
     myFixture.enableInspections(getInspection());
     myFixture.configureByText(RegExpFileType.INSTANCE, before);
+    myFixture.testHighlighting();
     final IntentionAction intention = findIntention(hint);
     assertNotNull(intention);
     myFixture.launchAction(intention);

RegExpSupport/test/org/intellij/lang/regexp/inspection/RepeatedSpaceInspectionTest.java

@@ -36,7 +36,7 @@ public class RepeatedSpaceInspectionTest extends RegExpInspectionTestCase {
   }
 
   public void testReplacement() {
-    quickfixTest("     ", " {5}", "Replace with ' {5}'");
+    quickfixTest("<warning descr=\"5 consecutive spaces in RegExp\">     </warning>", " {5}", "Replace with ' {5}'");
   }
 
   @Override

RegExpSupport/test/org/intellij/lang/regexp/inspection/SingleCharAlternationInspectionTest.java

@@ -32,7 +32,7 @@ public class SingleCharAlternationInspectionTest extends RegExpInspectionTestCas
   }
 
   public void testQuickfix() {
-    quickfixTest("x|y|z", "[xyz]", "Replace with '[xyz]'");
+    quickfixTest("<warning descr=\"Single character alternation in RegExp\">x|y|z</warning>", "[xyz]", "Replace with '[xyz]'");
   }
 
   @NotNull