Add missing names to StdNames

Author: nicolasstucki

compiler/src/dotty/tools/dotc/core/StdNames.scala

@@ -435,6 +435,8 @@ object StdNames {
     val ex: N                   = "ex"
     val extension: N            = "extension"
     val experimental: N         = "experimental"
+    val unitExpr: N             = "unitExpr"
+    val nullExpr: N             = "nullExpr"
     val f: N                    = "f"
     val false_ : N              = "false"
     val filter: N               = "filter"
@@ -556,6 +558,7 @@ object StdNames {
     val thisPrefix : N          = "thisPrefix"
     val throw_ : N              = "throw"
     val toArray: N              = "toArray"
+    val toExpr: N               = "toExpr"
     val toList: N               = "toList"
     val toObjectArray : N       = "toObjectArray"
     val toSeq: N                = "toSeq"

compiler/src/dotty/tools/dotc/transform/ReifyQuotes.scala

@@ -208,14 +208,14 @@ class ReifyQuotes extends MacroTransform {
 
       def pickleAsLiteral(lit: Literal) =
         lit.const.tag match {
-          case Constants.NullTag => ref(defn.QuotedExprModule).select("nullExpr".toTermName)
-          case Constants.UnitTag => ref(defn.QuotedExprModule).select("unitExpr".toTermName)
+          case Constants.NullTag => ref(defn.QuotedExprModule).select(nme.nullExpr)
+          case Constants.UnitTag => ref(defn.QuotedExprModule).select(nme.unitExpr)
           case _ => // Lifted literal
             val ltp = defn.LiftableClass.typeRef.appliedTo(ConstantType(lit.const))
             val liftable = ctx.typer.inferImplicitArg(ltp, body.span)
             if (liftable.tpe.isInstanceOf[SearchFailureType])
               ctx.error(ctx.typer.missingArgMsg(liftable, ltp, "Could no optimize constant in quote"), ctx.source.atSpan(body.span))
-            liftable.select("toExpr".toTermName).appliedTo(lit)
+            liftable.select(nme.toExpr).appliedTo(lit)
         }
 
       def pickleAsTasty() = {