Add meta project dotty-bootstrapped

This way you can run both the dotty-library-bootstrapped and
dotty-compiler-bootstrapped tests with one command:
  sbt ;publishLocal;dotty-bootstrapped/test

Author: smarter

.drone.yml

@@ -10,6 +10,6 @@ pipeline:
 matrix:
   TEST:
     - test
-    - dotty-compiler-bootstrapped/test
+    - ;publishLocal;dotty-bootstrapped/test
     - partest-only-no-bootstrap --show-diff --verbose
     - partest-only --show-diff --verbose

project/Build.scala

@@ -138,6 +138,12 @@ object DottyBuild extends Build {
     ).
     settings(publishing)
 
+  // Meta project aggregating all bootstrapped projects
+  lazy val `dotty-bootstrapped` = project.
+    aggregate(`dotty-library-bootstrapped`, `dotty-compiler-bootstrapped`).
+    settings(
+      publishArtifact := false
+    )
 
   lazy val `dotty-interfaces` = project.in(file("interfaces")).
     settings(sourceStructure).