don't highlight named groups in Java 1.7 regular expressions as errors (IDEA-80456)

java/java-impl/java-impl.iml

@@ -31,6 +31,7 @@
     <orderEntry type="library" name="Guava" level="project" />
     <orderEntry type="library" scope="TEST" name="JUnit4" level="project" />
     <orderEntry type="module" module-name="java-psi-impl" exported="" />
+    <orderEntry type="module" module-name="RegExpSupport" />
   </component>
   <component name="copyright">
     <Base>