exclude top level wrapper objects

set the Synthetic flag on
top level wrapper objects.

fixes #11693, top level definition
wrapper objects no longer appear
as a definition occurrence in semanticdb,
but are still recorded as a symbol

Author: bishabosha

compiler/src/dotty/tools/dotc/ast/Desugar.scala

@@ -1301,7 +1301,9 @@ object desugar {
     if (nestedStats.isEmpty) pdef
     else {
       val name = packageObjectName(ctx.source)
-      val grouped = ModuleDef(name, Template(emptyConstructor, Nil, Nil, EmptyValDef, nestedStats))
+      val grouped =
+        ModuleDef(name, Template(emptyConstructor, Nil, Nil, EmptyValDef, nestedStats))
+          .withMods(Modifiers(Synthetic))
       cpy.PackageDef(pdef)(pdef.pid, topStats :+ grouped)
     }
   }

tests/semanticdb/expect/AnonymousGiven.expect.scala

@@ -2,4 +2,4 @@ package angiven
 
 trait Foo/*<-angiven::Foo#*/
 
-/*<-angiven::AnonymousGiven$package.*/def bar/*<-angiven::AnonymousGiven$package.bar().*/(using Foo/*->angiven::Foo#*/) = 42
+def bar/*<-angiven::AnonymousGiven$package.bar().*/(using Foo/*->angiven::Foo#*/) = 42

tests/semanticdb/expect/EndMarkers.expect.scala

@@ -6,7 +6,7 @@ package endmarkers:
     end this/*->endmarkers::MultiCtor#`<init>`(+1).*/
   end MultiCtor/*->endmarkers::MultiCtor#*/
 
-  /*<-endmarkers::EndMarkers$package.*/def topLevelMethod/*<-endmarkers::EndMarkers$package.topLevelMethod().*/: String/*->scala::Predef.String#*/ =
+  def topLevelMethod/*<-endmarkers::EndMarkers$package.topLevelMethod().*/: String/*->scala::Predef.String#*/ =
     "hello"
   end topLevelMethod/*->endmarkers::EndMarkers$package.topLevelMethod().*/
 

tests/semanticdb/expect/Extension.expect.scala

@@ -1,6 +1,6 @@
 package ext
 
-/*<-ext::Extension$package.*/extension (s/*<-ext::Extension$package.foo().(s)*//*<-ext::Extension$package.`#*#`().(s)*/: String/*->scala::Predef.String#*/)
+extension (s/*<-ext::Extension$package.foo().(s)*//*<-ext::Extension$package.`#*#`().(s)*/: String/*->scala::Predef.String#*/)
   def foo/*<-ext::Extension$package.foo().*/: Int/*->scala::Int#*/ = 42
   def #*#/*<-ext::Extension$package.`#*#`().*/ (i/*<-ext::Extension$package.`#*#`().(i)*/: Int/*->scala::Int#*/): (String/*->scala::Predef.String#*/, Int/*->scala::Int#*/) = (/*->scala::Tuple2.apply().*/s/*->ext::Extension$package.`#*#`().(s)*/, i/*->ext::Extension$package.`#*#`().(i)*/)
 

tests/semanticdb/expect/InventedNames.expect.scala

@@ -11,7 +11,7 @@ trait Z/*<-givens::Z#*/[T/*<-givens::Z#[T]*/]:
 
 
 
-/*<-givens::InventedNames$package.*/given intValue/*<-givens::InventedNames$package.intValue.*/: Int/*->scala::Int#*/ = 4
+given intValue/*<-givens::InventedNames$package.intValue.*/: Int/*->scala::Int#*/ = 4
 given /*<-givens::InventedNames$package.given_String.*/String/*->scala::Predef.String#*/ = "str"
 given /*<-givens::InventedNames$package.given_Double().*/(using Int/*->scala::Int#*/): Double/*->scala::Double#*/ = 4.0
 given /*<-givens::InventedNames$package.given_List_T().*/[T/*<-givens::InventedNames$package.given_List_T().[T]*/]: List/*->scala::package.List#*/[T/*->givens::InventedNames$package.given_List_T().[T]*/] = Nil/*->scala::package.Nil.*/

tests/semanticdb/expect/RightAssociativeExtension.expect.scala

@@ -1,6 +1,6 @@
 package ext
 
-/*<-ext::RightAssociativeExtension$package.*/extension (s/*<-ext::RightAssociativeExtension$package.`:*:`().(s)*/: String/*->scala::Predef.String#*/)
+extension (s/*<-ext::RightAssociativeExtension$package.`:*:`().(s)*/: String/*->scala::Predef.String#*/)
   def :*:/*<-ext::RightAssociativeExtension$package.`:*:`().*/ (i/*<-ext::RightAssociativeExtension$package.`:*:`().(i)*/: Int/*->scala::Int#*/): (String/*->scala::Predef.String#*/, Int/*->scala::Int#*/) = (/*->scala::Tuple2.apply().*/s/*->ext::RightAssociativeExtension$package.`:*:`().(s)*/, i/*->ext::RightAssociativeExtension$package.`:*:`().(i)*/)
 
 val b/*<-ext::RightAssociativeExtension$package.b.*/ = "foo" :*:/*->ext::RightAssociativeExtension$package.`:*:`().*/ 23

tests/semanticdb/expect/exports-package.expect.scala

@@ -1,3 +1,3 @@
 package exports
 
-/*<-exports::`exports-package$package`.*/export example.{Decoder/*<-exports::`exports-package$package`.Decoder#*/, Encoder/*<-exports::`exports-package$package`.Encoder#*/, Codec/*<-exports::`exports-package$package`.Codec#*/}
+export example.{Decoder/*<-exports::`exports-package$package`.Decoder#*/, Encoder/*<-exports::`exports-package$package`.Encoder#*/, Codec/*<-exports::`exports-package$package`.Codec#*/}

tests/semanticdb/expect/i9727.expect.scala

@@ -1,5 +1,5 @@
 package i9727
 
 class Test/*<-i9727::Test#*/(a/*<-i9727::Test#a.*/: Int/*->scala::Int#*/)
-/*<-i9727::i9727$package.*/val a/*<-i9727::i9727$package.a.*/ = new Test/*->i9727::Test#*/(1)
+val a/*<-i9727::i9727$package.a.*/ = new Test/*->i9727::Test#*/(1)
 val b/*<-i9727::i9727$package.b.*/ = new Test/*->i9727::Test#*/(2)

tests/semanticdb/expect/toplevel.expect.scala

@@ -1,6 +1,7 @@
-/*<-_empty_::toplevel$package.*/inline val a/*<-_empty_::toplevel$package.a.*/ = ""
+inline val a/*<-_empty_::toplevel$package.a.*/ = ""
 extension (x/*<-_empty_::toplevel$package.combine().(x)*/: Int/*->scala::Int#*/) def combine/*<-_empty_::toplevel$package.combine().*/ (y/*<-_empty_::toplevel$package.combine().(y)*/: Int/*->scala::Int#*/) = x/*->_empty_::toplevel$package.combine().(x)*/ +/*->scala::Int#`+`(+4).*/ y/*->_empty_::toplevel$package.combine().(y)*/
 def combine/*<-_empty_::toplevel$package.combine(+1).*/(x/*<-_empty_::toplevel$package.combine(+1).(x)*/: Int/*->scala::Int#*/, y/*<-_empty_::toplevel$package.combine(+1).(y)*/: Int/*->scala::Int#*/, z/*<-_empty_::toplevel$package.combine(+1).(z)*/: Int/*->scala::Int#*/) = x/*->_empty_::toplevel$package.combine(+1).(x)*/ +/*->scala::Int#`+`(+4).*/ y/*->_empty_::toplevel$package.combine(+1).(y)*/ +/*->scala::Int#`+`(+4).*/ z/*->_empty_::toplevel$package.combine(+1).(z)*/
 def combine/*<-_empty_::toplevel$package.combine(+2).*/ = 0
 def foo/*<-_empty_::toplevel$package.foo().*/ = "foo"
 /*<-_empty_::MyProgram#*//*->_empty_::toplevel$package.MyProgram().*//*->scala::util::CommandLineParser.parseArgument().*//*->_empty_::MyProgram#main().(args)*//*->scala::util::CommandLineParser.FromString.given_FromString_Int.*//*->scala::util::CommandLineParser.showError().*//*->local0*/@main/*->scala::main#*/ def MyProgram/*<-_empty_::toplevel$package.MyProgram().*/(times/*<-_empty_::toplevel$package.MyProgram().(times)*/: Int/*->scala::Int#*/): Unit/*->scala::Unit#*/ = (/*->scala::LowPriorityImplicits#intWrapper().*/1 to/*->scala::runtime::RichInt#to().*/ times/*->_empty_::toplevel$package.MyProgram().(times)*/) foreach/*->scala::collection::immutable::Range#foreach().*/ (_ => println/*->scala::Predef.println(+1).*/("hello"))
+def fooRef/*<-_empty_::toplevel$package.fooRef().*/ = toplevel$package/*->_empty_::toplevel$package.*/.foo/*->_empty_::toplevel$package.foo().*/

tests/semanticdb/expect/toplevel.scala

@@ -4,3 +4,4 @@ def combine(x: Int, y: Int, z: Int) = x + y + z
 def combine = 0
 def foo = "foo"
 @main def MyProgram(times: Int): Unit = (1 to times) foreach (_ => println("hello"))
+def fooRef = toplevel$package.foo