Merge pull request scala#3297 from paulp/pr/7406

 crasher with specialized lazy val

Author: retronym

src/compiler/scala/tools/nsc/transform/SpecializeTypes.scala

@@ -923,7 +923,7 @@ abstract class SpecializeTypes extends InfoTransform with TypingTransformers {
 
   /** Return the specialized overload of `m`, in the given environment. */
   private def specializedOverload(owner: Symbol, sym: Symbol, env: TypeEnv, nameSymbol: Symbol = NoSymbol): Symbol = {
-    val newFlags = (sym.flags | SPECIALIZED) & ~(DEFERRED | CASEACCESSOR)
+    val newFlags = (sym.flags | SPECIALIZED) & ~(DEFERRED | CASEACCESSOR | LAZY)
     // this method properly duplicates the symbol's info
     val specname = specializedName(nameSymbol orElse sym, env)
     ( sym.cloneSymbol(owner, newFlags, newName = specname)

test/files/run/t7406.check

@@ -0,0 +1 @@
+10

test/files/run/t7406.scala

@@ -0,0 +1,14 @@
+class Arne[@specialized(Long) T](x: T) {
+  val regularVal = x
+  lazy val lazyVal = x
+
+  def apply(f: (T, T) => T): T = f(regularVal, lazyVal)
+}
+
+object Test {
+  val arne = new Arne(5L)
+  def f = arne(_ + _)
+  def main(args: Array[String]): Unit = {
+    println(f)
+  }
+}