Added auto-tupling.

Auto-tupling should satisfy the following spec.

1. An application `f(args)` where `f` is a non-overloaded method which has a single, non-repeated parameter as its
first parameter list and where args consists of two or more arguments is expanded to `f((args))`.

2. A constructor pattern `C(args)` where `C.unapply` is a non-overloaded method which has a single, non-repeated parameter as its first parameter list and where args consists of two or more arguments is expanded to `C((args))`.

Auto-tupling can be disabled by language feature "noAutoTupling".

Conflicts:
	test/dotc/tests.scala

1 files changed, 1 insertions, 1 deletions

diff --git a/src/dotty/tools/dotc/core/Definitions.scala b/src/dotty/tools/dotc/core/Definitions.scala
index 5c2890f29..bcf2bb74c 100644
--- a/src/dotty/tools/dotc/core/Definitions.scala
+++ b/src/dotty/tools/dotc/core/Definitions.scala
@@ -215,7 +215,7 @@ class Definitions {
   lazy val JavaSerializableClass        = ctx.requiredClass("java.lang.Serializable")
   lazy val ComparableClass              = ctx.requiredClass("java.lang.Comparable")
   lazy val ProductClass                 = ctx.requiredClass("scala.Product")
-  lazy val LanguageModuleClass          = ctx.requiredModule("dotty.language").moduleClass
+  lazy val LanguageModuleClass          = ctx.requiredModule("dotty.language").moduleClass.asClass
 
   // Annotation base classes
   lazy val AnnotationClass              = ctx.requiredClass("scala.annotation.Annotation")