Java: Highlight unreachable assignment of array element (IDEA-199556)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/advHighlighting/UnreachableArrayElementAssignment.java

@@ -0,0 +1,7 @@
+class C {
+  void foo(String arg) throws Exception {
+    Object[] objects;
+    throw new Exception("");
+    <error descr="Unreachable statement">objects[0] = arg;</error>
+  }
+}