Various cleanups and utility additions

- Some new functionality in tpd and in Symbols.
- Added `sm` interpolator to print nicely.
- Make use of nestedMap where possible.
- Add IdentityDenotTransformer as a convencience class

1 files changed, 6 insertions, 6 deletions

diff --git a/src/dotty/tools/dotc/core/pickling/UnPickler.scala b/src/dotty/tools/dotc/core/pickling/UnPickler.scala
index dd26b20df..462c10137 100644
--- a/src/dotty/tools/dotc/core/pickling/UnPickler.scala
+++ b/src/dotty/tools/dotc/core/pickling/UnPickler.scala
@@ -53,10 +53,10 @@ object UnPickler {
         val result = restpe.parameterizeWith(tparams)
         for ((msg, pos) <- err)
           ctx.warning(
-            s"""$msg
-               |originally parsed type : ${tp.show}
-               |will be approximated by: ${result.show}.
-               |Proceed at own risk.""".stripMargin)
+            sm"""$msg
+                |originally parsed type : ${tp.show}
+                |will be approximated by: ${result.show}.
+                |Proceed at own risk.""")
         result
       }
       else
@@ -161,8 +161,8 @@ class UnPickler(bytes: Array[Byte], classRoot: ClassDenotation, moduleClassRoot:
 
   protected def errorBadSignature(msg: String, original: Option[RuntimeException] = None)(implicit ctx: Context) = {
     val ex = new BadSignature(
-      s"""error reading Scala signature of $classRoot from $source:
-         |error occured at position $readIndex: $msg""".stripMargin)
+      sm"""error reading Scala signature of $classRoot from $source:
+          |error occured at position $readIndex: $msg""")
     /*if (debug)*/ original.getOrElse(ex).printStackTrace() // !!! DEBUG
     throw ex
   }