Add Scala Native 0.4.0-M2 support

Author: ekrich

.travis.yml

@@ -28,22 +28,28 @@ matrix:
 
     # run migration test
     - scala: 2.12.8
-      env: TEST_SCALAFIX=true        ADOPTOPENJDK=11
+      env: TEST_SCALAFIX=true           ADOPTOPENJDK=11
 
     # run binary compatibility test
     - scala: 2.12.8
-      env: TEST_BINARY_COMPAT=true   ADOPTOPENJDK=11
+      env: TEST_BINARY_COMPAT=true      ADOPTOPENJDK=11
 
     # run scalafmt
     - scala: 2.12.8
-      env: TEST_SCALAFMT=true        ADOPTOPENJDK=11
+      env: TEST_SCALAFMT=true           ADOPTOPENJDK=11
 
     # Scala Native includes
     - scala: 2.11.12
-      env: SCALANATIVE_VERSION=0.3.9 ADOPTOPENJDK=8
+      env: SCALANATIVE_VERSION=0.3.9    ADOPTOPENJDK=8
 
     - scala: 2.11.12
-      env: SCALANATIVE_VERSION=0.3.9 ADOPTOPENJDK=11
+      env: SCALANATIVE_VERSION=0.4.0-M2 ADOPTOPENJDK=8
+
+    - scala: 2.11.12
+      env: SCALANATIVE_VERSION=0.3.9    ADOPTOPENJDK=11
+
+    - scala: 2.11.12
+      env: SCALANATIVE_VERSION=0.4.0-M2 ADOPTOPENJDK=11
 
 before_install:
   # adding $HOME/.sdkman to cache would create an empty directory, which interferes with the initial installation