refactors macro tests

putting in a nutshell, this patch:
  * condenses some macro-XXX-a/b/c/... bundles
  * renames some tests to prepare for other macro flavors
  * introduces some additional tests

2 files changed, 13 insertions, 0 deletions

diff --git a/test/files/run/macro-impl-tparam-typetag-is-optional/Impls_1.scala b/test/files/run/macro-impl-tparam-typetag-is-optional/Impls_1.scala
new file mode 100644
index 0000000000..ace7a6cd26
--- /dev/null
+++ b/test/files/run/macro-impl-tparam-typetag-is-optional/Impls_1.scala
@@ -0,0 +1,9 @@
+import scala.reflect.macros.{Context => Ctx}
+
+object Impls {
+  def foo[U](c: Ctx) = {
+    import c.universe._
+    val body = Apply(Select(Ident(definitions.PredefModule), TermName("println")), List(Literal(Constant("don't know U"))))
+    c.Expr[Unit](body)
+  }
+}
\ No newline at end of file
diff --git a/test/files/run/macro-impl-tparam-typetag-is-optional/Macros_Test_2.scala b/test/files/run/macro-impl-tparam-typetag-is-optional/Macros_Test_2.scala
new file mode 100644
index 0000000000..e72c27881a
--- /dev/null
+++ b/test/files/run/macro-impl-tparam-typetag-is-optional/Macros_Test_2.scala
@@ -0,0 +1,4 @@
+object Test extends App {
+  def foo[U] = macro Impls.foo[U]
+  foo[Int]
+}
\ No newline at end of file