CreateSwitchIntention shouldn't throw on malformed strings

java/java-tests/testData/codeInsight/createSwitch/notFailingOnBadEscapes.java

@@ -0,0 +1,5 @@
+class Test {
+  void m() {
+    <caret>"\"
+  }
+}

java/java-tests/testData/codeInsight/createSwitch/notFailingOnBadEscapes_after.java

@@ -0,0 +1,5 @@
+class Test {
+  void m() {
+      <caret>switch ("\") {}
+  }
+}

java/java-tests/testSrc/com/intellij/java/codeInsight/intention/CreateSwitchTest.java

@@ -63,6 +63,8 @@ public class CreateSwitchTest extends JavaCodeInsightFixtureTestCase {
     withJava7(this::doTestNotAvailable);
   }
 
+  public void testNotFailingOnBadEscapes() { withJava7(this::doTest); }
+
   private void withJava7(Runnable runnable) {
     final LanguageLevelProjectExtension languageLevelProjectExtension = LanguageLevelProjectExtension.getInstance(getProject());
     final LanguageLevel oldLanguageLevel = languageLevelProjectExtension.getLanguageLevel();