bin/dotc doesn't include scala-xml.jar

[retronym]

cat test.scala
object Test {
  <foo/>
}
  ~/code/dotty ./bin/dotc test.scala
exception occured while parsing test.scala
Exception in thread "main" java.lang.NoClassDefFoundError: scala/xml/Utility$

[samuelgruetter]

I get the same error when I want to launch dotty from Eclipse, even without xml (but including a < sign):

object world extends App {
  type T <: App
  println("hello dotty!")
}

dotty/examples/hello.scala:4: error: '}' expected but identifier found.
  type T <: App
         ^
exception occured while parsing dotty/examples/hello.scalaException in thread "main" 
java.lang.NoClassDefFoundError: scala/xml/Utility$
    at dotty.tools.dotc.parsing.Scanners$Scanner.fetchLT$1(Scanners.scala:275)
    at dotty.tools.dotc.parsing.Scanners$Scanner.fetchToken(Scanners.scala:283)

Running the same example from the sbt console works.

[odersky]

@DarkDimius Can you take a look? Thanks!

[DarkDimius]

This error is due to sole existance of symbol < in compiled file. One of the constants referenced in parser in case '<' is defined in scala-xml.
eg: 1 < 0 will also fail to parse if scala-xml isn't on the classpath(bootclasspath).
This error should be fixed in #74

[odersky]

OK. I'd day if the tests for #74 pass, go ahead merging.

[adriaanm]

Alternatively, I'd consider making dotty run without scala-xml classes on the classpath. scalac doesn't require them anymore (unless you're actually using xml)

[odersky]

@adriaanm I think you are right. Why do we need XML? Dotty cannot even parse XML literals, they are supposed to come in interpolated strings.

[DarkDimius]

#79