Update scalac opts in test reporter to support Scala 3 (#1353)

For Scala 3 some opts have to be removed because according to the docs, they are not implemented yet.

Author: liucijus

scala/support/BUILD

@@ -4,40 +4,73 @@ load("@io_bazel_rules_scala_config//:config.bzl", "SCALA_MAJOR_VERSION")
 scala_library(
     name = "test_reporter",
     srcs = ["JUnitXmlReporter.scala"],
-    scalacopts = [
-        "-deprecation:true",
-        "-encoding",
-        "UTF-8",
-        "-feature",
-        "-language:existentials",
-        "-language:higherKinds",
-        "-language:implicitConversions",
-        "-unchecked",
-        "-Xfatal-warnings",
-        "-Xlint",
-        "-Ywarn-dead-code",
-        "-Ywarn-numeric-widen",
-        "-Ywarn-value-discard",
-        "-Wunused:imports",
-    ] if SCALA_MAJOR_VERSION == "2.13" else [
-        "-deprecation:true",
-        "-encoding",
-        "UTF-8",
-        "-feature",
-        "-language:existentials",
-        "-language:higherKinds",
-        "-language:implicitConversions",
-        "-unchecked",
-        "-Xfatal-warnings",
-        "-Xlint",
-        "-Yno-adapted-args",
-        "-Ywarn-dead-code",
-        "-Ywarn-numeric-widen",
-        "-Ywarn-value-discard",
-        "-Xfuture",
-        "-Ywarn-unused-import",
-        "-Ypartial-unification",
-    ],
+    scalacopts = {
+        "3.1": [
+            "-deprecation:true",
+            "-encoding",
+            "UTF-8",
+            "-feature",
+            "-language:existentials",
+            "-language:higherKinds",
+            "-language:implicitConversions",
+            "-unchecked",
+            "-Xfatal-warnings",
+        ],
+        "2.13": [
+            "-deprecation:true",
+            "-encoding",
+            "UTF-8",
+            "-feature",
+            "-language:existentials",
+            "-language:higherKinds",
+            "-language:implicitConversions",
+            "-unchecked",
+            "-Xfatal-warnings",
+            "-Xlint",
+            "-Ywarn-dead-code",
+            "-Ywarn-numeric-widen",
+            "-Ywarn-value-discard",
+            "-Wunused:imports",
+        ],
+        "2.12": [
+            "-deprecation:true",
+            "-encoding",
+            "UTF-8",
+            "-feature",
+            "-language:existentials",
+            "-language:higherKinds",
+            "-language:implicitConversions",
+            "-unchecked",
+            "-Xfatal-warnings",
+            "-Xlint",
+            "-Yno-adapted-args",
+            "-Ywarn-dead-code",
+            "-Ywarn-numeric-widen",
+            "-Ywarn-value-discard",
+            "-Xfuture",
+            "-Ywarn-unused-import",
+            "-Ypartial-unification",
+        ],
+        "2.11": [
+            "-deprecation:true",
+            "-encoding",
+            "UTF-8",
+            "-feature",
+            "-language:existentials",
+            "-language:higherKinds",
+            "-language:implicitConversions",
+            "-unchecked",
+            "-Xfatal-warnings",
+            "-Xlint",
+            "-Yno-adapted-args",
+            "-Ywarn-dead-code",
+            "-Ywarn-numeric-widen",
+            "-Ywarn-value-discard",
+            "-Xfuture",
+            "-Ywarn-unused-import",
+            "-Ypartial-unification",
+        ],
+    }[SCALA_MAJOR_VERSION],
     visibility = ["//visibility:public"],
     deps = [
         "//scala/private/toolchain_deps:scala_xml",