Add PR check for direct tracing

Author: henrymercer

.github/workflows/__autobuild-direct-tracing.yml

@@ -0,0 +1,30 @@
+name: "Autobuild direct tracing"
+description: "An end-to-end integration test of a Java repository built using 'build-mode: autobuild', with direct tracing enabled"
+operatingSystems: ["ubuntu"]
+versions: ["latest", "nightly-latest"]
+env:
+  CODEQL_ACTION_AUTOBUILD_BUILD_MODE_DIRECT_TRACING: true
+steps:
+  - name: Set up Java test repo configuration
+    run: |
+      mv * .github ../action/tests/multi-language-repo/
+      mv ../action/tests/multi-language-repo/.github/workflows .github
+      mv ../action/tests/java-repo/* .
+
+  - uses: ./../action/init
+    id: init
+    with:
+      build-mode: autobuild
+      db-location: "${{ runner.temp }}/customDbLocation"
+      languages: java
+      tools: ${{ steps.prepare-test.outputs.tools-url }}
+    
+  - name: Check that indirect tracing is disabled
+    run: |
+      if [[ ! -z "${CODEQL_RUNNER}" ]]; then
+        echo "Expected indirect tracing to be disabled, but the" \
+          "CODEQL_RUNNER environment variable is set."
+        exit 1
+      fi
+
+  - uses: ./../action/analyze