Make FutureDefsOK the default.

We should probably get rid of it. Signal to noise ratio is too low to be useful

Author: odersky

src/dotty/tools/dotc/Compiler.scala

@@ -101,8 +101,8 @@ class Compiler {
     val start = bootstrap.fresh
       .setOwner(defn.RootClass)
       .setTyper(new Typer)
-      .setMode(Mode.ImplicitsEnabled)
       .setTyperState(new MutableTyperState(ctx.typerState, new ConsoleReporter()(ctx), isCommittable = true))
+      .setMode(Mode.ImplicitsEnabled | Mode.FutureDefsOK)
     ctx.definitions.init(start) // set context of definitions to start
     start.setRunInfo(new RunInfo(start))
     def addImport(ctx: Context, sym: Symbol) =