Comply with range position checking.

 - Make sure all trees are positioned
 - Mark range positions for synthetic code as transparent to allow
   some wiggle room for overlapping ranges.

Enables -Yrangepos for our test suite. We can't add it for
the entire build until the fix for SI-7649 lands in the compiler.

1 files changed, 2 insertions, 0 deletions

diff --git a/build.sbt b/build.sbt
index f7de6c6..d6dc3bb 100644
--- a/build.sbt
+++ b/build.sbt
@@ -32,6 +32,8 @@ scalacOptions += "-P:continuations:enable"
 
 scalacOptions ++= Seq("-deprecation", "-unchecked", "-Xlint", "-feature")
 
+scalacOptions in Test ++= Seq("-Yrangepos")
+
 description := "An asynchronous programming facility for Scala, in the spirit of C# await/async"
 
 homepage := Some(url("http://github.com/scala/async"))