chore: add flag to disable the warning in the error message

Author: hamzaremmal

compiler/src/dotty/tools/dotc/typer/Migrations.scala

@@ -132,7 +132,10 @@ trait Migrations:
     if tp.companion == ImplicitMethodType && pt.applyKind != ApplyKind.Using && pt.args.nonEmpty then
       val rewriteMsg = Message.rewriteNotice("This code", mversion.patchFrom)
       report.errorOrMigrationWarning(
-        em"Implicit parameters should be provided with a `using` clause.$rewriteMsg", 
+        em"""Implicit parameters should be provided with a `using` clause.$rewriteMsg
+            |To disable the warning, please use the following option: 
+            |  "-Wconf:msg=Implicit parameters should be provided with a `using` clause:s"
+            |""", 
         pt.args.head.srcPos, mversion)
       if mversion.needsPatch then
         patch(Span(pt.args.head.span.start), "using ")

tests/neg/i22440.check

@@ -3,3 +3,5 @@
   |            ^
   |            Implicit parameters should be provided with a `using` clause.
   |            This code can be rewritten automatically under -rewrite -source 3.7-migration.
+  |            To disable the warning, please use the following option: 
+  |              "-Wconf:msg=Implicit parameters should be provided with a `using` clause:s"

tests/pos/i22440.scala

@@ -0,0 +1,4 @@
+//> using options "-Wconf:msg=Implicit parameters should be provided with a `using` clause:s"
+
+def foo(implicit x: Int) = x
+val _ = foo(1) // warn

tests/warn/i22440.check

@@ -3,3 +3,5 @@
   |            ^
   |            Implicit parameters should be provided with a `using` clause.
   |            This code can be rewritten automatically under -rewrite -source 3.7-migration.
+  |            To disable the warning, please use the following option: 
+  |              "-Wconf:msg=Implicit parameters should be provided with a `using` clause:s"