Fix for SI-5535.

Author: paulp

src/compiler/scala/tools/nsc/interpreter/MemberHandlers.scala

@@ -120,7 +120,7 @@ trait MemberHandlers {
     private def vparamss = member.vparamss
     private def isMacro = member.mods.hasFlag(scala.reflect.internal.Flags.MACRO)
     // true if not a macro and 0-arity
-    override def definesValue = !isMacro && (vparamss.isEmpty || vparamss.head.isEmpty)
+    override def definesValue = !isMacro && (vparamss.isEmpty || vparamss.head.isEmpty && vparamss.tail.isEmpty)
     override def resultExtractionCode(req: Request) =
       if (mods.isPublic) codegenln(name, ": ", req.typeOf(name)) else ""
   }

test/files/run/t5535.check

@@ -0,0 +1,20 @@
+Type in expressions to have them evaluated.
+Type :help for more information.
+
+scala> 
+
+scala> def h()(i: Int) = 1 + i
+h: ()(i: Int)Int
+
+scala> println(h()(5))
+6
+
+scala> val f = h() _
+f: Int => Int = <function1>
+
+scala> println(f(10))
+11
+
+scala> 
+
+scala> 

test/files/run/t5535.scala

@@ -0,0 +1,10 @@
+import scala.tools.partest.ReplTest
+
+object Test extends ReplTest {
+  def code = """
+def h()(i: Int) = 1 + i
+println(h()(5))
+val f = h() _
+println(f(10))
+  """
+}