Represent untyped operators as Ident instead of Name

This has two advantages:
- We can distinguish BackquotedIdent from Ident, allowing the user to
  use a defined "type `&`", see testcase.
- We get better positions for the operators. This is useful in IDEs, for
  example to get the type at point.

1 files changed, 4 insertions, 0 deletions

diff --git a/tests/pos/backquoted_type_operator.scala b/tests/pos/backquoted_type_operator.scala
new file mode 100644
index 000000000..5ee875702
--- /dev/null
+++ b/tests/pos/backquoted_type_operator.scala
@@ -0,0 +1,4 @@
+object Test {
+  type `&`[L,R] = L
+  val x: Int `&` String = 10
+}