check for primary constructor in namePresentInSource (#18325)

fixes #18319

note that we still do not produce occurrences for the primary
constructor's own parameters, it seems in scala 2 implementation only
the local backing field has occurrences.

Author: bishabosha

compiler/src/dotty/tools/dotc/semanticdb/Scala3.scala

@@ -47,7 +47,8 @@ object Scala3:
       // for secondary constructors `this`
       desig match
         case sym: Symbol =>
-          if sym.isConstructor && nameInSource == nme.THISkw.toString then
+          if sym.isConstructor
+          && (sym.isPrimaryConstructor || nameInSource == nme.THISkw.toString) then
             true
           else
             val target =