don't throw exceptions when completing in the RHS of >>, complete instead

java/java-tests/testData/codeInsight/completion/normal/RightShift.java

@@ -0,0 +1,8 @@
+public class SomeClass {
+  Object myField1;
+  Object myField2;
+
+  void foo(int param) {
+    int a = param >> my<caret>
+  }
+}