Split #974 into two PRs - scalastyle updates (#1037)

* Update style warnings now that subprojects are aggregated.
Use "scalastyle-test-config.xml" for scalastyle config in tests.
Enable "_" in method names and accept method names ending in "_=".
Re-sync scalastyle-test-config.xml with scalastyle-config.xml

* Remove bogus tests that crept in with git add

* Add missing import.

1 files changed, 3 insertions, 3 deletions

diff --git a/chiselFrontend/src/main/scala/chisel3/core/Printable.scala b/chiselFrontend/src/main/scala/chisel3/core/Printable.scala
index 7b3d8d4f..c724f682 100644
--- a/chiselFrontend/src/main/scala/chisel3/core/Printable.scala
+++ b/chiselFrontend/src/main/scala/chisel3/core/Printable.scala
@@ -54,14 +54,14 @@ sealed abstract class Printable {
     */
   def unpack(ctx: Component): (String, Iterable[String])
   /** Allow for appending Printables like Strings */
-  final def +(that: Printable) = Printables(List(this, that))
+  final def +(that: Printable): Printables = Printables(List(this, that))
   /** Allow for appending Strings to Printables */
-  final def +(that: String) = Printables(List(this, PString(that)))
+  final def +(that: String): Printables = Printables(List(this, PString(that)))
 }
 object Printable {
   /** Pack standard printf fmt, args* style into Printable
     */
-  def pack(fmt: String, data: Data*): Printable = {
+  def pack(fmt: String, data: Data*): Printable = { // scalastyle:ignore method.length
     val args = data.toIterator
 
     // Error handling