Add ASAN, optional, CI core test.

.ci/azp-linux-asan-test.yml

@@ -0,0 +1,22 @@
+steps:
+- bash: |
+    set -e
+    uname -a
+    ./.ci/linux-cxx-install.sh
+  displayName: Install
+- bash: |
+    set -e
+    cd src/engine
+    set PATH=${PATH};${CXX_PATH}
+    ./build.sh ${TOOLSET}
+    ./b2 -v
+    cd ../..
+    ./src/engine/b2 -a address-sanitizer=on toolset=${TOOLSET} b2
+  displayName: Build
+- bash: |
+    set -e
+    export B2=`ls -1 .build/*/debug/address-sanitizer-on/cxxstd-11-iso/b2`
+    cd test
+    python test_all.py ${TOOLSET}
+    cd ..
+  displayName: Test

azure-pipelines.yml

@@ -107,6 +107,16 @@ stages:
     steps:
     - template: .ci/azp-macos-test.yml
 
+  - job: 'Linux_ASAN'
+    strategy:
+      matrix:
+        Clang ${{variables.clang_latest}}: {TOOLSET: "clang-${{variables.clang_latest}}", PACKAGES: "clang-${{variables.clang_latest}}", LLVM_OS: "${{variables.linux_latest_os}}", LLVM_VER: 13, VM_IMAGE: "${{variables.linux_latest_vm}}"}
+    pool:
+      vmImage: $(VM_IMAGE)
+    continueOnError: 'true'
+    steps:
+    - template: .ci/azp-linux-asan-test.yml
+
 - stage: Compilers
   dependsOn: [Core]
   jobs: