Fix tests

Author: odersky

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

@@ -58,7 +58,7 @@ class CompletionTest {
 
   // TODO: Also add tests with concrete classes, where the completion will
   // include the constructor proxy companion
-  
+
   @Test def importCompleteClassWithPrefix: Unit = {
     withSources(
       code"""object Foo { abstract class MyClass }""",
@@ -328,7 +328,7 @@ class CompletionTest {
           |given Baz = new Baz {}
           |extension (foo: Foo.type)(using Bar, Baz) def xxxx = 1
           |object Main { Foo.xx${m1} }""".withSource
-      .completion(m1, Set(("xxxx", Method, "(using x$1: Bar, x$2: Baz): Int")))
+      .completion(m1, Set(("xxxx", Method, "(using x$2: Bar, x$3: Baz): Int")))
   }
 
   @Test def completeExtensionMethodFromExtenionWithMultipleUsingSections: Unit = {
@@ -339,7 +339,7 @@ class CompletionTest {
           |given Baz = new Baz {}
           |extension (foo: Foo.type)(using Bar)(using Baz) def xxxx = 1
           |object Main { Foo.xx${m1} }""".withSource
-      .completion(m1, Set(("xxxx", Method, "(using x$1: Bar)(using x$2: Baz): Int")))
+      .completion(m1, Set(("xxxx", Method, "(using x$2: Bar)(using x$3: Baz): Int")))
   }
 
   @Test def completeInheritedExtensionMethod: Unit = {

tests/neg/i10901.check

@@ -38,4 +38,4 @@
    |
    |              Test.foo("abc")(/* missing */summon[C])    failed with
    |
-   |                  no implicit argument of type C was found for parameter x$1 of method foo in object Test
+   |                  no implicit argument of type C was found for parameter x$2 of method foo in object Test

tests/neg/i6183.check

@@ -7,14 +7,14 @@
   |        render(42)    failed with
   |
   |            Ambiguous overload. The overloaded alternatives of method render in object Test with types
-  |             [B](b: B)(using x$1: DummyImplicit): Char
+  |             [B](b: B)(using x$2: DummyImplicit): Char
   |             [A](a: A): String
   |            both match arguments ((42 : Int))
 -- [E051] Reference Error: tests/neg/i6183.scala:7:9 -------------------------------------------------------------------
 7 |    Test.render(42) // error
   |    ^^^^^^^^^^^
   |    Ambiguous overload. The overloaded alternatives of method render in object Test with types
-  |     [B](b: B)(using x$1: DummyImplicit): Char
+  |     [B](b: B)(using x$2: DummyImplicit): Char
   |     [A](a: A): String
   |    both match arguments ((42 : Int))