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, 1 insertions, 1 deletions

diff --git a/src/dotty/tools/dotc/typer/FrontEnd.scala b/src/dotty/tools/dotc/typer/FrontEnd.scala
index eee8744a5..c5c6aec3c 100644
--- a/src/dotty/tools/dotc/typer/FrontEnd.scala
+++ b/src/dotty/tools/dotc/typer/FrontEnd.scala
@@ -23,7 +23,7 @@ class FrontEnd extends Phase {
     try body
     catch {
       case NonFatal(ex) =>
-        ctx.println(s"exception occurred while $doing ${ctx.compilationUnit}")
+        ctx.echo(s"exception occurred while $doing ${ctx.compilationUnit}")
         throw ex
     }