build: add tests for Node.js v11

PR-URL: #247
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

.travis.yml

@@ -47,6 +47,20 @@ matrix:
         - npm run coverage
         - npm run codecov-upload
 
+    - name: "[Trusty] Node.js v11.x"
+      sudo: required
+      dist: trusty
+      before_install:
+        - sudo apt-get -qq update
+        - sudo apt-get install lldb-3.9 liblldb-3.9-dev lcov -y
+      install:
+        - npm install --llnode_build_addon=true --llnode_coverage=true
+      script: TEST_LLDB_BINARY=`which lldb-3.9` npm run nyc-test-all
+      node_js: "11"
+      after_success:
+        - npm run coverage
+        - npm run codecov-upload
+
     ###########################
     # Nightlies & V8 Canaries #
     ###########################
@@ -112,6 +126,13 @@ matrix:
       script: npm run test-all
       node_js: "10"
 
+    - name: "[OSX] Node.js v11.x"
+      os: osx
+      osx_image: xcode9.3
+      install: npm install --llnode_build_addon=true
+      script: npm run test-all
+      node_js: "11"
+
     ##########
     # Linter #
     ##########

README.md

@@ -23,10 +23,10 @@ https://asciinema.org/a/29589
 
 ## Build Status
 
-| Version | v6.x                    | v8.x                    | v10.x                     | master                        | v8-canary                        |
-|---------|-------------------------|-------------------------|---------------------------|-------------------------------|----------------------------------|
-| **Trusty**  | [![v6.x badge][v6-trusty-badge]][travis] | [![v8.x badge][v8-trusty-badge]][travis] | [![v10.x badge][v10-trusty-badge]][travis] | [![master badge][master-trusty-badge]][travis] | [![v8-canary badge][canary-trusty-badge]][travis] |
-| **OS X**  | [![v6.x badge][v6-osx-badge]][travis] | [![v8.x badge][v8-osx-badge]][travis] | [![v10.x badge][v10-osx-badge]][travis] | - | - |
+| Version | v6.x                    | v8.x                    | v10.x                     | v11.x                     | master                        | v8-canary                        |
+|---------|-------------------------|-------------------------|---------------------------|---------------------------|-------------------------------|----------------------------------|
+| **Trusty**  | [![v6.x badge][v6-trusty-badge]][travis] | [![v8.x badge][v8-trusty-badge]][travis] | [![v10.x badge][v10-trusty-badge]][travis] | [![v11.x badge][v11-trusty-badge]][travis] | [![master badge][master-trusty-badge]][travis] | [![v8-canary badge][canary-trusty-badge]][travis] |
+| **OS X**  | [![v6.x badge][v6-osx-badge]][travis] | [![v8.x badge][v8-osx-badge]][travis] | [![v10.x badge][v10-osx-badge]][travis] | [![v11.x badge][v11-osx-badge]][travis] | - | - |
 
 We have nightly test runs against all Node.js active release lines. We also test
 against Node.js master and Node.js v8-canary nightly builds to help us identify
@@ -388,10 +388,12 @@ USE OR OTHER DEALINGS IN THE SOFTWARE.
 [v6-trusty-badge]: https://travisci-matrix-badges.herokuapp.com/repos/nodejs/llnode/branches/master/1?use_travis_com=true
 [v8-trusty-badge]: https://travisci-matrix-badges.herokuapp.com/repos/nodejs/llnode/branches/master/2?use_travis_com=true
 [v10-trusty-badge]: https://travisci-matrix-badges.herokuapp.com/repos/nodejs/llnode/branches/master/3?use_travis_com=true
+[v11-trusty-badge]: https://travisci-matrix-badges.herokuapp.com/repos/nodejs/llnode/branches/master/4?use_travis_com=true
 
-[v6-osx-badge]: https://travisci-matrix-badges.herokuapp.com/repos/nodejs/llnode/branches/master/4?use_travis_com=true
-[v8-osx-badge]: https://travisci-matrix-badges.herokuapp.com/repos/nodejs/llnode/branches/master/5?use_travis_com=true
-[v10-osx-badge]: https://travisci-matrix-badges.herokuapp.com/repos/nodejs/llnode/branches/master/6?use_travis_com=true
+[v6-osx-badge]: https://travisci-matrix-badges.herokuapp.com/repos/nodejs/llnode/branches/master/5?use_travis_com=true
+[v8-osx-badge]: https://travisci-matrix-badges.herokuapp.com/repos/nodejs/llnode/branches/master/6?use_travis_com=true
+[v10-osx-badge]: https://travisci-matrix-badges.herokuapp.com/repos/nodejs/llnode/branches/master/7?use_travis_com=true
+[v11-osx-badge]: https://travisci-matrix-badges.herokuapp.com/repos/nodejs/llnode/branches/master/8?use_travis_com=true
 
-[master-trusty-badge]: https://travisci-matrix-badges.herokuapp.com/repos/nodejs/llnode/branches/master/7?use_travis_com=true
-[canary-trusty-badge]: https://travisci-matrix-badges.herokuapp.com/repos/nodejs/llnode/branches/master/8?use_travis_com=true
+[master-trusty-badge]: https://travisci-matrix-badges.herokuapp.com/repos/nodejs/llnode/branches/master/10?use_travis_com=true
+[canary-trusty-badge]: https://travisci-matrix-badges.herokuapp.com/repos/nodejs/llnode/branches/master/11?use_travis_com=true