Move JuliaSyntax + JuliaLowering into the main tree

.github/workflows/JuliaSyntaxCI.yml

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+name: JuliaSyntaxCI
+on:
+  push:
+    branches:
+      - master
+      - release-*
+    paths:
+      - 'JuliaSyntax/**'
+    tags: '*'
+  pull_request:
+    paths:
+      - 'JuliaSyntax/**'
+concurrency:
+  # Skip intermediate builds: always.
+  # Cancel intermediate builds: only if it is a pull request build.
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
+jobs:
+  test:
+    runs-on: ${{ matrix.os }}
+    timeout-minutes: 60
+    permissions:
+      contents: read
+    strategy:
+      fail-fast: false
+      matrix:
+        version:
+          - '1.0'
+          - '1.6'
+          - '1.10'
+          - '1'
+        github-runner:
+          - ubuntu-latest
+          - macOS-latest
+          - windows-latest
+        julia-wordsize:
+          # The value here only affects the version of Julia binary that we download.
+          # It does not affect the architecture of the GitHub Runner (virtual machine) that
+          # we run on.
+          - '32' # 32-bit Julia. Only available on x86_64. Not available on aarch64.
+          - '64' # 64-bit Julia.
+        exclude:
+          # We don't have 32-bit builds of Julia for Intel macOS:
+          - github-runner: macos-13 # macos-13 = Intel.
+            julia-wordsize: '32'
+          # We don't have 32-bit builds of Julia for Apple Silicon macOS:
+          - github-runner: macos-14 # macos-14 = Apple Silicon.
+            julia-wordsize: '32'
+    steps:
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        with:
+          persist-credentials: false
+      - uses: julia-actions/setup-julia@5c9647d97b78a5debe5164e9eec09d653d29bd71 # v2.6.1
+        with:
+          version: ${{ matrix.julia-version }}
+          # If `julia-wordsize` is 32, then we set `arch` to `x86`, because we know that
+          # 32-bit builds of Julia are only available for x86.
+          #
+          # If `julia-wordsize` is 64, then we set `arch` to `${{ runner.arch }}`, which
+          # GitHub will automatically expand to the correct value (`x86_64` or `aarch64`)
+          # based on the architecture of the underlying GitHub Runner (virtual machine).
+          arch: ${{ matrix.julia-wordsize == '32' && 'x86' || runner.arch }}
+      - uses: julia-actions/julia-buildpkg@e3eb439fad4f9aba7da2667e7510e4a46ebc46e1 # v1.7.0
+      - uses: julia-actions/julia-runtest@678da69444cd5f13d7e674a90cb4f534639a14f9 # v1.11.2
+        with:
+          project: JuliaSyntax

JuliaLowering/.github/workflows/CI.yml

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+name: CI
+on:
+  push:
+    branches:
+      - main
+    tags: ['*']
+  pull_request:
+  workflow_dispatch:
+concurrency:
+  # Skip intermediate builds: always.
+  # Cancel intermediate builds: only if it is a pull request build.
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
+jobs:
+  test:
+    name: Julia ${{ matrix.version }} - ${{ matrix.os }} - ${{ matrix.arch }} - ${{ github.event_name }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        version:
+          - 'nightly'
+        os:
+          - ubuntu-latest
+        arch:
+          - x64
+    steps:
+      - uses: actions/checkout@v4
+      - uses: julia-actions/setup-julia@v1
+        with:
+          version: ${{ matrix.version }}
+          arch: ${{ matrix.arch }}
+      - uses: julia-actions/cache@v1
+      - uses: julia-actions/julia-buildpkg@v1
+      - uses: julia-actions/julia-runtest@v1

JuliaLowering/.github/workflows/CompatHelper.yml

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+name: CompatHelper
+on:
+  schedule:
+    - cron: 0 0 * * *
+  workflow_dispatch:
+jobs:
+  CompatHelper:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Pkg.add("CompatHelper")
+        run: julia -e 'using Pkg; Pkg.add("CompatHelper")'
+      - name: CompatHelper.main()
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          COMPATHELPER_PRIV: ${{ secrets.DOCUMENTER_KEY }}
+        run: julia -e 'using CompatHelper; CompatHelper.main()'

JuliaLowering/.github/workflows/TagBot.yml

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+name: TagBot
+on:
+  issue_comment:
+    types:
+      - created
+  workflow_dispatch:
+    inputs:
+      lookback:
+        default: 3
+permissions:
+  actions: read
+  checks: read
+  contents: write
+  deployments: read
+  issues: read
+  discussions: read
+  packages: read
+  pages: read
+  pull-requests: read
+  repository-projects: read
+  security-events: read
+  statuses: read
+jobs:
+  TagBot:
+    if: github.event_name == 'workflow_dispatch' || github.actor == 'JuliaTagBot'
+    runs-on: ubuntu-latest
+    steps:
+      - uses: JuliaRegistries/TagBot@v1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          ssh: ${{ secrets.DOCUMENTER_KEY }}

JuliaLowering/.gitignore

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+/Manifest.toml

JuliaLowering/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 JuliaHub and contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

JuliaLowering/Project.toml

@@ -0,0 +1,22 @@
+name = "JuliaLowering"
+uuid = "f3c80556-a63f-4383-b822-37d64f81a311"
+authors = ["Claire Foster <[email protected]> and contributors"]
+version = "1.0.0-DEV"
+
+[deps]
+JuliaSyntax = "70703baa-626e-46a2-a12c-08ffd08c73b4"
+
+[sources]
+JuliaSyntax = {rev = "99e975a7", url = "https://github.com/JuliaLang/JuliaSyntax.jl"}
+
+[compat]
+julia = "1"
+
+[extras]
+Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
+Markdown = "d6f4376e-aef5-505a-96c1-9c027394607a"
+FileWatching = "7b1f6079-737a-58dc-b8bc-7a2ca5c1b5ee"
+REPL = "3fa0cd96-eef1-5676-8a61-b3b8758bbffb"
+
+[targets]
+test = ["Test", "FileWatching", "Markdown", "REPL"]