title: Why is Scala compiler in Eclipse Kepler complaining about sbt sources?
body: <p>I have cloned the latest version of <a href="https://github.com/sbt/sbt" rel="nofollow">sbt's sources from the git repository</a> and started browsing the Scala code. I am using Eclipse (Kepler) and the Scala compiler seems to choke on several files in <code>util/collection/src/main/scala</code>.</p>
  
  <p>For example, <a href="https://github.com/sbt/sbt/blob/0.13/util/collection/src/main/scala/sbt/TypeFunctions.scala" rel="nofollow">TypeFunctions.scala</a> contains <a href="https://github.com/sbt/sbt/blob/0.13/util/collection/src/main/scala/sbt/TypeFunctions.scala#L36" rel="nofollow">the trait ~></a> with 2 methods which have bizarre-looking names <code>∙</code>.</p>
  
  <p>This weird-looking character only appears as a single symbol if I use UTF-8 encoding for the file. A binary editor shows it as a sequence of these 3 hex values: E2 88 99</p>
  
  <p>Can anyone explain this please?</p>