Update language reference documentation. Change shown version to 3.1.2

.github/workflows/ci.yaml

@@ -371,49 +371,6 @@ jobs:
         if: ${{ always() }}
         run: cat community-build/dotty-community-build-deps || true
 
-  community_build_forward_compat:
-    runs-on: [self-hosted, Linux]
-    container:
-      image: lampepfl/dotty:2021-03-22
-      options: --cpu-shares 4096
-      volumes:
-        - ${{ github.workspace }}/../../cache/sbt:/root/.sbt
-        - ${{ github.workspace }}/../../cache/ivy:/root/.ivy2/cache
-        - ${{ github.workspace }}/../../cache/general:/root/.cache
-    if: "github.event_name == 'schedule' && github.repository == 'lampepfl/dotty'
-        || (
-           github.event_name == 'pull_request'
-           && !contains(github.event.pull_request.body, '[skip ci]')
-           && !contains(github.event.pull_request.body, '[skip community_build]')
-           && contains(github.event.pull_request.body, '[test_forward_compat]')
-         )
-         || (
-           github.event_name == 'workflow_dispatch'
-           && github.repository == 'lampepfl/dotty'
-         )"
-
-    steps:
-      - name: Reset existing repo
-        run: git -c "http.https://github.com/.extraheader=" fetch --recurse-submodules=no "https://github.com/lampepfl/dotty" && git reset --hard FETCH_HEAD || true
-
-      - name: Checkout cleanup script
-        uses: actions/checkout@v2
-
-      - name: Cleanup
-        run: .github/workflows/cleanup.sh
-
-      - name: Git Checkout
-        uses: actions/checkout@v2
-
-      - name: Add SBT proxy repositories
-        run: cp -vf .github/workflows/repositories /root/.sbt/ ; true
-
-      - name: Test
-        run: |
-          git submodule sync
-          git submodule update --init --recursive --jobs 7
-          ./project/scripts/sbt "community-build/testOnly dotty.communitybuild.CommunityBuildTestForwardCompat"
-
   test_sbt:
     runs-on: [self-hosted, Linux]
     container:
@@ -513,7 +470,7 @@ jobs:
         - ${{ github.workspace }}/../../cache/sbt:/root/.sbt
         - ${{ github.workspace }}/../../cache/ivy:/root/.ivy2/cache
         - ${{ github.workspace }}/../../cache/general:/root/.cache
-    needs: [test_non_bootstrapped, test, mima, community_build_a, community_build_b, community_build_c, community_build_forward_compat, test_sbt, test_java8]
+    needs: [test_non_bootstrapped, test, mima, community_build_a, community_build_b, community_build_c, test_sbt, test_java8]
     if: "(github.event_name == 'schedule' || github.event_name == 'workflow_dispatch') && github.repository == 'lampepfl/dotty'"
     env:
       NIGHTLYBUILD: yes

.gitmodules

@@ -216,37 +216,6 @@
 [submodule "community-build/community-projects/spire"]
 	path = community-build/community-projects/spire
 	url = https://github.com/dotty-staging/spire.git
-[submodule "community-build/community-projects/munit-forward-compat"]
-	path = community-build/community-projects/munit-forward-compat
-	url = https://github.com/dotty-staging/munit.git
-[submodule "community-build/community-projects/discipline-forward-compat"]
-	path = community-build/community-projects/discipline-forward-compat
-	url = https://github.com/dotty-staging/discipline.git
-[submodule "community-build/community-projects/discipline-munit-forward-compat"]
-	path = community-build/community-projects/discipline-munit-forward-compat
-	url = https://github.com/dotty-staging/discipline-munit.git
-[submodule "community-build/community-projects/discipline-specs2-forward-compat"]
-	path = community-build/community-projects/discipline-specs2-forward-compat
-	url = https://github.com/dotty-staging/discipline-specs2.git
-[submodule "community-build/community-projects/simulacrum-scalafix-forward-compat"]
-	path = community-build/community-projects/simulacrum-scalafix-forward-compat
-	url = https://github.com/dotty-staging/simulacrum-scalafix.git
-[submodule "community-build/community-projects/cats-forward-compat"]
-	path = community-build/community-projects/cats-forward-compat
-	url = https://github.com/dotty-staging/cats.git
-[submodule "community-build/community-projects/cats-mtl-forward-compat"]
-	path = community-build/community-projects/cats-mtl-forward-compat
-	url = https://github.com/dotty-staging/cats-mtl.git
-[submodule "community-build/community-projects/coop-forward-compat"]
-	path = community-build/community-projects/coop-forward-compat
-	url = https://github.com/dotty-staging/coop.git
-[submodule "community-build/community-projects/cats-effect-3-forward-compat"]
-	path = community-build/community-projects/cats-effect-3-forward-compat
-	url = https://github.com/dotty-staging/cats-effect.git
-	branch = series/3.x
-[submodule "community-build/community-projects/scalacheck-forward-compat"]
-	path = community-build/community-projects/scalacheck-forward-compat
-	url = https://github.com/dotty-staging/scalacheck
 [submodule "community-build/community-projects/http4s"]
 	path = community-build/community-projects/http4s
 	url = https://github.com/dotty-staging/http4s.git

NOTICE.md

@@ -88,6 +88,10 @@ major authors were omitted by oversight.
     docs/js/. Please refer to the license header of the concerned files for
     details.
 
+  * dotty.tools.dotc.coverage: Coverage instrumentation utilities have been
+    adapted from the scoverage plugin for scala 2 [5], which is under the
+    Apache 2.0 license.
+
   * The Dotty codebase contains parts which are derived from
     the ScalaPB protobuf library [4], which is under the Apache 2.0 license.
 
@@ -96,3 +100,4 @@ major authors were omitted by oversight.
 [2] https://github.com/adriaanm/scala/tree/sbt-api-consolidate/src/compiler/scala/tools/sbt
 [3] https://github.com/sbt/sbt/tree/0.13/compile/interface/src/main/scala/xsbt
 [4] https://github.com/lampepfl/dotty/pull/5783/files
+[5] https://github.com/scoverage/scalac-scoverage-plugin

community-build/src/scala/dotty/communitybuild/CommunityBuildRunner.scala

@@ -17,10 +17,10 @@ object CommunityBuildRunner:
    *  for more infrastructural details.
    */
   extension (self: CommunityProject) def run()(using suite: CommunityBuildRunner): Unit =
-    if self.requiresExperimental && !self.compilerSupportExperimental then
+    if self.requiresExperimental && !compilerSupportExperimental then
       log(s"Skipping ${self.project} - it needs experimental features unsupported in this build.")
       return
-    self.dependencies().foreach(_.publish())
+    self.dependencies.foreach(_.publish())
     self.testOnlyDependencies().foreach(_.publish())
     suite.runProject(self)
 
@@ -45,7 +45,6 @@ trait CommunityBuildRunner:
     val project = projectDef.project
     val command = projectDef.binaryName
     val arguments = projectDef.buildCommands
-    val compilerVersion = projectDef.compilerVersion
 
     @annotation.tailrec
     def execTimes(task: () => Int, timesToRerun: Int): Boolean =

community-build/src/scala/dotty/communitybuild/Main.scala

@@ -57,7 +57,7 @@ object Main:
         val (toRun, ignored) =
           allProjects.partition( p =>
             p.docCommand != null
-            && (!p.requiresExperimental || p.compilerSupportExperimental)
+            && (!p.requiresExperimental || compilerSupportExperimental)
           )
 
         val paths = toRun.map { project =>