Change the -coverage-exclude-classlikes option and its doc

Author: KacperFKorban

compiler/src/dotty/tools/dotc/config/ScalaSettings.scala

@@ -127,7 +127,7 @@ trait CommonScalaSettings:
 
   /* Coverage settings */
   val coverageOutputDir = PathSetting("-coverage-out", "Destination for coverage classfiles and instrumentation data.", "", aliases = List("--coverage-out"))
-  val coverageExcludePackages: Setting[List[String]] = MultiStringSetting("-coverage-exclude-packages", "packages", "List of regexes for packages to exclude from coverage.", aliases = List("--coverage-exclude-packages"))
+  val coverageExcludeClasslikes: Setting[List[String]] = MultiStringSetting("-coverage-exclude-classlikes", "packages, clesses and modules", "List of regexes for packages, classes and modules to exclude from coverage.", aliases = List("--coverage-exclude-packages"))
   val coverageExcludeFiles: Setting[List[String]] = MultiStringSetting("-coverage-exclude-files", "files", "List of regexes for files to exclude from coverage.", aliases = List("--coverage-exclude-files"))
 
   /* Other settings */

compiler/src/dotty/tools/dotc/transform/InstrumentCoverage.scala

@@ -61,7 +61,7 @@ class InstrumentCoverage extends MacroTransform with IdentityDenotTransformer:
     Serializer.serialize(coverage, outputPath, ctx.settings.sourceroot.value)
 
   private def isClassIncluded(sym: Symbol)(using Context): Boolean =
-    val excludedClassNamePatterns = ctx.settings.coverageExcludePackages.value.map(_.r.pattern)
+    val excludedClassNamePatterns = ctx.settings.coverageExcludeClasslikes.value.map(_.r.pattern)
     excludedClassNamePatterns.isEmpty || !excludedClassNamePatterns.exists(
       _.matcher(sym.fullName.toText(ctx.printerFn(ctx)).show).nn.matches
     )