Merge pull request #11786 from rjolly/convert

Make `convert` available without import

Author: sjrd

language-server/test/dotty/tools/languageserver/CompletionTest.scala

@@ -30,7 +30,7 @@ class CompletionTest {
 
   @Test def completionFromScalaPackage: Unit = {
     code"class Foo { val foo: Conv${m1} }".withSource
-      .completion(m1, Set(("Conversion", Class, "class and object Conversion")))
+      .completion(m1, Set(("Conversion", Class, "scala.Conversion")))
   }
 
   @Test def completionFromScalaPackageObject: Unit = {

library/src/scala/Conversion.scala

@@ -25,8 +25,7 @@ package scala
 abstract class Conversion[-T, +U] extends Function1[T, U]:
   /** Convert value `x` of type `T` to type `U` */
   def apply(x: T): U
-object Conversion:
 
-  extension [T](x: T)
-    /** `x.convert[U]` converts a value `x` of type `T` to type `U` */
-    def convert[U](using c: Conversion[T, U]) = c(x)
+  extension (x: T)
+    /** `x.convert` converts a value `x` of type `T` to type `U` */
+    def convert = this(x)

tests/pos/convert.scala

@@ -1,7 +1,9 @@
-import Conversion.convert
+import java.util.Date
 
 given Conversion[String, Int] = _.length
 given Conversion[Int, String] = _.toString
+given Conversion[Int, Date] = new Date(_)
 
 def f(x: String): Int = x.convert
-def g(x: Int): String = x.convert[String]
+def g(x: Int): String = x.convert
+def h(x: Int): Date = x.convert