Rename Reporting#println -> Reporting#echo

There's a trap otherwise that, when in a class inheriting
from Context (and with it Reporting) a call to println will
go to this.println and therefore might not print at all, if
the current context buffers messages. I lost a lot of time
on this on several occasions when I scratched my head why
a simple debug println would not show. Better avoid this in
the future for myself and others.

1 files changed, 4 insertions, 4 deletions

diff --git a/src/dotty/tools/dotc/config/CompilerCommand.scala b/src/dotty/tools/dotc/config/CompilerCommand.scala
index e34ca07f9..2fe32b4d3 100644
--- a/src/dotty/tools/dotc/config/CompilerCommand.scala
+++ b/src/dotty/tools/dotc/config/CompilerCommand.scala
@@ -110,18 +110,18 @@ object CompilerCommand extends DotClass {
 
     if (summary.errors.nonEmpty) {
       summary.errors foreach (ctx.error(_))
-      ctx.println("  dotc -help  gives more information")
+      ctx.echo("  dotc -help  gives more information")
       Nil
     }
     else if (settings.version.value) {
-      ctx.println(versionMsg)
+      ctx.echo(versionMsg)
       Nil
     }
     else if (shouldStopWithInfo) {
-      ctx.println(infoMessage)
+      ctx.echo(infoMessage)
       Nil
     } else {
-      if (sourcesRequired && summary.arguments.isEmpty) ctx.println(usageMessage)
+      if (sourcesRequired && summary.arguments.isEmpty) ctx.echo(usageMessage)
       summary.arguments
     }
   }