Do not advertise deprecated alias

Author: som-snytt

compiler/src/dotty/tools/dotc/reporting/Reporter.scala

@@ -232,7 +232,7 @@ abstract class Reporter extends interfaces.ReporterResult {
 
   def finalizeReporting()(using Context) =
     if (hasWarnings && ctx.settings.Werror.value)
-      report(new Error("No warnings can be incurred under -Werror (or -Xfatal-warnings)", NoSourcePosition))
+      report(new Error("No warnings can be incurred under -Werror", NoSourcePosition))
 
   /** Summary of warnings and errors */
   def summary: String =

tests/neg-custom-args/sourcepath2/hi/A.check

@@ -4,4 +4,4 @@
   |      class Hello is in the wrong directory.
   |      It was declared to be in package <empty>
   |      But it is found in directory     hi
-No warnings can be incurred under -Werror (or -Xfatal-warnings)
+No warnings can be incurred under -Werror

tests/neg-macros/i9570.check

@@ -2,4 +2,4 @@
 15 |        case '{HCons(_,$t)} => // warn (in .check file)
    |                     ^
    |             Use of `_` for lambda in quoted pattern. Use explicit lambda instead or use `$_` to match any term.
-No warnings can be incurred under -Werror (or -Xfatal-warnings)
+No warnings can be incurred under -Werror

tests/neg-macros/macro-deprecation.check

@@ -2,4 +2,4 @@
 5 |inline def f = ${ impl } // warn (in .check file)
   |                  ^^^^
   |                  method impl is deprecated
-No warnings can be incurred under -Werror (or -Xfatal-warnings)
+No warnings can be incurred under -Werror

tests/neg-scalajs/enumeration-warnings.check

@@ -58,4 +58,4 @@
    |                               ^^^^^^^^^^^^
    |                 Passing null as name to a constructor of scala.Enumeration.Val requires reflection at run-time.
    |                 The resulting program is unlikely to function properly.
-No warnings can be incurred under -Werror (or -Xfatal-warnings)
+No warnings can be incurred under -Werror

tests/neg/i15474b.check

@@ -3,4 +3,4 @@
   |                                   ^^^^^^^^^^
   |                                   Infinite loop in function body
   |                                   Test1.c.apply(from).toInt
-No warnings can be incurred under -Werror (or -Xfatal-warnings)
+No warnings can be incurred under -Werror

tests/neg/i17612b.check

@@ -30,4 +30,4 @@
 41 |	class UnderDerived(x: Int, y: Int, z: Int) extends Derived(x, 1, y, z) // warn // warn // warn
    |	                                   ^
    |	                                   value z in class UnderDerived shadows field z inherited from trait Base
-No warnings can be incurred under -Werror (or -Xfatal-warnings)
+No warnings can be incurred under -Werror

tests/neg/i17613b.check

@@ -58,4 +58,4 @@
 42 |				class InnerCl[ImClassR] // warn
    |				              ^^^^^^^^
    |				              Type parameter ImClassR for class InnerCl shadows an explicitly renamed type : ImClassR
-No warnings can be incurred under -Werror (or -Xfatal-warnings)
+No warnings can be incurred under -Werror

tests/neg/i18632.check

@@ -2,4 +2,4 @@
 12 |  bar // warn
    |  ^^^
    |  unused value of type String
-No warnings can be incurred under -Werror (or -Xfatal-warnings)
+No warnings can be incurred under -Werror

tests/neg/i8711.check

@@ -18,4 +18,4 @@
 14 |    case x: C => x // error
    |         ^
    |         this case is unreachable since type A | B and class C are unrelated
-No warnings can be incurred under -Werror (or -Xfatal-warnings)
+No warnings can be incurred under -Werror