Moving flags around for performance.

Also trimmed some cruft which had accrued in recent work.

1 files changed, 3 insertions, 4 deletions

diff --git a/src/compiler/scala/tools/nsc/ast/DocComments.scala b/src/compiler/scala/tools/nsc/ast/DocComments.scala
index d3f4688d4b..4c7083a51f 100755
--- a/src/compiler/scala/tools/nsc/ast/DocComments.scala
+++ b/src/compiler/scala/tools/nsc/ast/DocComments.scala
@@ -523,10 +523,9 @@ trait DocComments { self: Global =>
       }
 
       for (defn <- defined) yield {
-        val useCase = defn.cloneSymbol
-        useCase.owner = sym.owner
-        useCase.flags = sym.flags
-        useCase.setFlag(Flags.SYNTHETIC).setInfo(substAliases(defn.info).asSeenFrom(site.thisType, sym.owner))
+        defn.cloneSymbol(sym.owner, sym.flags | Flags.SYNTHETIC) modifyInfo (info =>
+          substAliases(info).asSeenFrom(site.thisType, sym.owner)
+        )
       }
     }
   }