Improve code style in the Scaladoc implementation.

It fixes the following inefficiences or code style violations:

	- Explicit asInstanceOf calls.
	- Boxing symbols instead of using plain NoSymbol.
	- Matching `this` instead of late-binding.

1 files changed, 1 insertions, 1 deletions

diff --git a/test/files/presentation/doc/doc.scala b/test/files/presentation/doc/doc.scala
index 916b7832f4..a64a423cc5 100755
--- a/test/files/presentation/doc/doc.scala
+++ b/test/files/presentation/doc/doc.scala
@@ -71,7 +71,7 @@ object Test extends InteractiveTest {
             if (expanded.isEmpty)
               None
             else
-              Some(ask { () => parseAtSymbol(expanded, raw, pos, Some(sym.owner)) })
+              Some(ask { () => parseAtSymbol(expanded, raw, pos, sym.owner) })
         }
       }
     }