workflows/release-binaries: Run tests on the same runner as the build (#162421)

Also, ignore the test results since they almost always fail. This allows
us to simplify the build process and skip uploading and downloading the
build and source directories which are huge.

(cherry picked from commit 9f0f6e8)

Author: tstellar

.github/workflows/release-binaries-save-stage/action.yml

@@ -194,40 +194,30 @@ jobs:
     runs-on: ${{ needs.prepare.outputs.build-runs-on }}
     steps:
 
-    - name: Checkout Actions
-      uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
-      with:
-        ref: ${{ (github.event_name == 'pull_request' && github.sha) || 'main' }}
-        sparse-checkout: |
-          .github/workflows/
-        sparse-checkout-cone-mode: false
-        # Check out outside of working directory so the source checkout doesn't
-        # remove it.
-        path: workflows
-
-    # actions/checkout does not support paths outside of the GITHUB_WORKSPACE.
-    # Also, anything that we put inside of GITHUB_WORKSPACE will be overwritten
-    # by future actions/checkout steps.  Therefore, in order to checkout the
-    # latest actions from main, we need to first checkout out the actions inside of
-    # GITHUB_WORKSPACE (see previous step), then use actions/checkout to checkout
-    # the code being built and the move the actions from main back into GITHUB_WORKSPACE,
-    # becasue the uses on composite actions only reads workflows from inside GITHUB_WORKSPACE.
-    - shell: bash
-      run: mv workflows  ../workflows-main
-
     - name: Checkout LLVM
       uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
       with:
         ref: ${{ needs.prepare.outputs.ref }}
 
-    - name: Copy main workflows
-      shell: bash
-      run: |
-        mv ../workflows-main .
+    - name: Install Ninja
+      uses: llvm/actions/install-ninja@a1ea791b03c8e61f53a0e66f2f73db283aa0f01e # main
+
+    - name: Setup Windows
+      if: startsWith(runner.os, 'Windows')
+      uses: llvm/actions/setup-windows@main
+      with:
+        arch: amd64
 
-    - name: Setup Stage
+    - name: Set Build Prefix
       id: setup-stage
-      uses: ./workflows-main/.github/workflows/release-binaries-setup-stage
+      shell: bash
+      run: |
+        build_prefix=`pwd`
+        if [ "${{ runner.os }}" = "Linux" ]; then
+          sudo chown $USER:$USER /mnt/
+          build_prefix=/mnt/
+        fi
+        echo "build-prefix=$build_prefix" >> $GITHUB_OUTPUT
 
     - name: Configure
       id: build
@@ -258,17 +248,11 @@ jobs:
         path: |
           ${{ needs.prepare.outputs.release-binary-filename }}
 
-    # Clean up some build files to reduce size of artifact.
-    - name: Clean Up Build Directory
-      shell: bash
+    - name: Run Tests
+      # These almost always fail so don't let them fail the build and prevent the uploads.
+      continue-on-error: true
       run: |
-        find ${{ steps.setup-stage.outputs.build-prefix }}/build -iname ${{ needs.prepare.outputs.release-binary-filename }} -delete
-        find ${{ steps.setup-stage.outputs.build-prefix }}/build -iname _CPack_Packages -prune -exec rm -r {} +
-    
-    - name: Save Stage
-      uses: ./workflows-main/.github/workflows/release-binaries-save-stage
-      with:
-        build-prefix: ${{ steps.setup-stage.outputs.build-prefix }}
+        ninja -C ${{ steps.setup-stage.outputs.build-prefix }}/build stage2-check-all
 
   upload-release-binaries:
     name: "Upload Release Binaries"
@@ -327,31 +311,3 @@ jobs:
         --release ${{ needs.prepare.outputs.release-version }} \
         upload \
         --files ${{ needs.prepare.outputs.release-binary-filename }}*
-
-  test-release:
-    name: "Test Release"
-    needs:
-      - prepare
-      - build-release-package
-    if: >-
-      github.repository_owner == 'llvm'
-    runs-on: ${{ needs.prepare.outputs.test-runs-on }}
-    steps:
-    - name: Checkout Actions
-      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-      with:
-        ref: ${{ (github.event_name == 'pull_request' && github.sha) || 'main' }}
-        sparse-checkout: |
-          .github/workflows/
-        sparse-checkout-cone-mode: false
-        path: workflows
-    - name: Setup Stage
-      id: setup-stage
-      uses: ./workflows/.github/workflows/release-binaries-setup-stage
-      with:
-        previous-artifact: build-release-package
-
-    - name: Run Tests
-      shell: bash
-      run: |
-        ninja -C ${{ steps.setup-stage.outputs.build-prefix }}/build stage2-check-all