Add documentation for MacroAnnotations::enterMissingSymbols

Author: hamzaremmal

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

@@ -134,10 +134,12 @@ class MacroAnnotations(phase: IdentityDenotTransformer):
     else if annotated.isClass && annotated.owner.is(Package) /*&& !sym.isClass*/ then
       report.error(i"macro annotation can not add top-level ${sym.showKind}. $annot tried to add $sym.", annot.tree)
 
+  /**
+   * Enter the symbols generated by MacroAnnotations
+   */
   private def enterMissingSymbols(tree: DefTree)(using Context) = new TreeTraverser {
     def traverse(tree: tpd.Tree)(using Context): Unit = tree match
       case tdef @ TypeDef(_, template: Template) =>
-        //for tree <- template.constr :: template.body do
         val isSymbolInDecls = tdef.symbol.asClass.info.decls.toList.toSet
         for tree <- template.body do
           if tree.symbol.owner != tdef.symbol then