SI-8173 add support for patterns like init :+ last to quasiquotes

Adds support for patterns like:

  val q"{ ..$init; $last }" = q"{ a; b; c }"
  // init == List(q"a", q"b")
  // last == q"c"

Which under the hood get compiled as `:+` patterns:

  SyntacticBlock(init :+ last)

1 files changed, 0 insertions, 5 deletions

diff --git a/test/files/scalacheck/quasiquotes/QuasiquoteProperties.scala b/test/files/scalacheck/quasiquotes/QuasiquoteProperties.scala
index e4ee5dfcae..589b8d4d72 100644
--- a/test/files/scalacheck/quasiquotes/QuasiquoteProperties.scala
+++ b/test/files/scalacheck/quasiquotes/QuasiquoteProperties.scala
@@ -116,10 +116,5 @@ trait Helpers {
     }
   }
 
-  def annot(name: String): Tree = annot(TypeName(name), Nil)
-  def annot(name: TypeName): Tree = annot(name, Nil)
-  def annot(name: String, args: List[Tree]): Tree = annot(TypeName(name), args)
-  def annot(name: TypeName, args: List[Tree]): Tree = q"new $name(..$args)"
-
   val scalapkg = build.setSymbol(Ident(TermName("scala")), definitions.ScalaPackage)
 }