Disable nyc coverage reporting on older node versions

.travis.yml

@@ -11,5 +11,11 @@ matrix:
       before_script:
         - npm install -g coveralls
     - node_js: "12"
+      script:
+        - ./node_modules/.bin/grunt no-coverage
     - node_js: "10"
+      script:
+        - ./node_modules/.bin/grunt no-coverage
     - node_js: "8"
+      script:
+        - ./node_modules/.bin/grunt no-coverage

Gruntfile.js

@@ -623,6 +623,11 @@ module.exports = function(grunt) {
         'Builds editor content then runs code style checks and unit tests on all components',
         ['build','verifyPackageDependencies','jshint:editor','nyc:all']);
 
+    grunt.registerTask('no-coverage',
+        'Builds editor content then runs code style checks and unit tests on all components without code coverage',
+        ['build','verifyPackageDependencies','jshint:editor','simplemocha:all']);
+
+
     grunt.registerTask('test-core',
         'Runs code style check and unit tests on core runtime code',
         ['build','nyc:core']);