better macro impl shape errors

With the advent of quasiquotes, we allowed both arguments and return types
of macro impls to be c.Tree's (as opposed to traditional c.Expr[T]'s).

This warrants an update of macro def <-> macro impl signature mismatch
errors that include a printout of suggested macro impl signatures. Now
along with a signature that contains exprs, we suggest another signature
that has all exprs replaced by trees

1 files changed, 1 insertions, 0 deletions

diff --git a/test/files/neg/t6123-explaintypes-macros.check b/test/files/neg/t6123-explaintypes-macros.check
index ebcb8069d5..43f8371326 100644
--- a/test/files/neg/t6123-explaintypes-macros.check
+++ b/test/files/neg/t6123-explaintypes-macros.check
@@ -2,6 +2,7 @@ c.universe.Expr[Any]* <: c.universe.Expr[String]*?
 false
 BadMac_2.scala:6: error: macro implementation has wrong shape:
  required: (c: scala.reflect.macros.Context)(format: c.Expr[String], params: c.Expr[Any]*): c.Expr[Unit]
+ or      : (c: scala.reflect.macros.Context)(format: c.Tree, params: Tree*): c.Tree
  found   : (c: scala.reflect.macros.Context)(format: c.Expr[String], params: c.Expr[String]*): c.Expr[Unit]
 type mismatch for parameter params: c.Expr[Any]* does not conform to c.Expr[String]*
   def printf(format: String, params: Any*): Unit = macro printf_impl