1 files changed, 24 insertions, 1 deletions
diff --git a/src/reflect/scala/reflect/internal/Scopes.scala b/src/reflect/scala/reflect/internal/Scopes.scala
index 103f885ad4..0435a2c1cf 100644
--- a/src/reflect/scala/reflect/internal/Scopes.scala
+++ b/src/reflect/scala/reflect/internal/Scopes.scala
@@ -282,6 +282,15 @@ trait Scopes extends api.Scopes { self: SymbolTable =>
       }
     }
 
+    final def lookupSymbolEntry(sym: Symbol): ScopeEntry = {
+      var e = lookupEntry(sym.name)
+      while (e ne null) {
+        if (e.sym == sym) return e
+        e = lookupNextEntry(e)
+      }
+      null
+    }
+
     /** lookup a symbol entry matching given name.
      *  @note from Martin: I believe this is a hotspot or will be one
      *  in future versions of the type system. I have reverted the previous
@@ -317,6 +326,20 @@ trait Scopes extends api.Scopes { self: SymbolTable =>
       e
     }
 
+    final def lookupNameInSameScopeAs(original: Symbol, companionName: Name): Symbol = {
+      lookupSymbolEntry(original) match {
+        case null =>
+        case entry =>
+          var e = lookupEntry(companionName)
+          while (e != null) {
+            if (e.owner eq entry.owner) return e.sym
+            e = lookupNextEntry(e)
+          }
+      }
+      NoSymbol
+    }
+
+
     /** TODO - we can test this more efficiently than checking isSubScope
      *  in both directions. However the size test might be enough to quickly
      *  rule out most failures.
@@ -380,7 +403,7 @@ trait Scopes extends api.Scopes { self: SymbolTable =>
       if (toList forall p) this
       else newScopeWith(toList filter p: _*)
     )
-    @deprecated("Use `toList.reverse` instead", "2.10.0") // Used in SBT 0.12.4
+    @deprecated("use `toList.reverse` instead", "2.10.0") // Used in sbt 0.12.4
     def reverse: List[Symbol] = toList.reverse
 
     override def mkString(start: String, sep: String, end: String) =