Test the Scala.js sandbox in the test_bootstrapped step in the CI.

Instead of its own `test_sjs`.

Author: sjrd

.drone.yml

@@ -34,16 +34,9 @@ pipeline:
     image: lampepfl/dotty:2018-10-01
     commands:
       - cp -R . /tmp/2/ && cd /tmp/2/
-      - ./project/scripts/sbt ";dotty-bootstrapped/compile ;dotty-bootstrapped/test"
+      - ./project/scripts/sbt ";dotty-bootstrapped/compile ;dotty-bootstrapped/test ;sjsSandbox/run"
       - ./project/scripts/bootstrapCmdTests
 
-  test_sjs:
-    group: test
-    image: lampepfl/dotty:2018-10-01
-    commands:
-      - cp -R . /tmp/3/ && cd /tmp/3/
-      - ./project/scripts/sbt ";sjsSandbox/run"
-
   test_sbt:
     group: test
     image: lampepfl/dotty:2018-10-01