Fix synthetic members being added to docs

Author: felixmulder

doc-tool/src/dotty/tools/dottydoc/core/DocASTPhase.scala

@@ -82,7 +82,8 @@ class DocASTPhase extends Phase {
     }
 
 
-    tree match {
+    if (tree.symbol.is(Flags.Synthetic) && !tree.symbol.is(Flags.Module)) NonEntity
+    else tree match {
       /** package */
       case pd @ PackageDef(pid, st) =>
         addPackage(PackageImpl(pd.symbol, annotations(pd.symbol), pd.symbol.showFullName, collectEntityMembers(st), path(pd.symbol)))

doc-tool/test/SourceFileOps.scala

@@ -11,7 +11,7 @@ import model.Package
 
 trait SourceFileOps {
   import scala.collection.JavaConverters._
-  val site = new Site(new java.io.File("../doc-tool/resources/"), "test-site", Map.empty)
+  val site = new Site(new java.io.File("../doc-tool/resources/"), "test-site", "v0.1", Map.empty)
 
   def stringToSource(path: String, sourceCode: String): SourceFile = {
     val virtualFile = new VirtualFile(path, path)