switch expressions: highlight break values (IDEA-204569)

java/java-tests/testData/codeInsight/highlightUsagesHandler/BreakInSwitchExpr.java

@@ -0,0 +1,10 @@
+class Main {
+  public static void main(String[] args) {
+    String s = switch (args.length) {
+      case 1:
+        br<caret>eak "abc";
+      default:
+        break "";
+    };
+  }
+}