Remove anonymous class from spring webmvc-3.1 (DataDog/dd-trace-java#1611)

Author: richardstartin

instrumentation/spring-webmvc-3.1/src/main/java/io/opentelemetry/auto/instrumentation/springwebmvc/SpringWebMvcDecorator.java

@@ -96,7 +96,7 @@ public Span onRender(final Span span, final ModelAndView mv) {
     span.setAttribute("view.name", mv.getViewName());
     final View view = mv.getView();
     if (view != null) {
-      span.setAttribute("view.type", view.getClass().getName());
+      span.setAttribute("view.type", spanNameForClass(view.getClass()));
     }
     return span;
   }

instrumentation/spring-webmvc-3.1/src/test/groovy/test/boot/SpringBootBasedTest.groovy

@@ -136,7 +136,7 @@ class SpringBootBasedTest extends HttpServerTest<ConfigurableApplicationContext>
       spanKind INTERNAL
       errored false
       tags {
-        "view.type" RedirectView.name
+        "view.type" RedirectView.simpleName
       }
     }
   }