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/t5689.check b/test/files/neg/t5689.check
index ad9b79cdcb..8cf0534e77 100644
--- a/test/files/neg/t5689.check
+++ b/test/files/neg/t5689.check
@@ -1,5 +1,6 @@
 t5689.scala:4: error: macro implementation has wrong shape:
  required: (c: scala.reflect.macros.Context)(i: c.Expr[Double]): c.Expr[String]
+ or      : (c: scala.reflect.macros.Context)(i: c.Tree): c.Tree
  found   : (c: scala.reflect.macros.Context)(i: c.Expr[Double]): c.Expr[Int]
 type mismatch for return type: c.Expr[Int] does not conform to c.Expr[String]
   def returnsString(i: Double): String = macro returnsIntImpl