Introduce ToIndentParser and ToIndentScanner

Remove ScriptParsers

Author: adpi2

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

@@ -10,7 +10,7 @@ import util.{SourceFile, ReadOnlyMap}
 import util.Spans._
 import util.CommentParsing._
 import util.Property.Key
-import parsing.Parsers.Parser
+import parsing.Parsers
 import reporting.ProperDefinitionNotFound
 
 object Comments {
@@ -125,7 +125,7 @@ object Comments {
   object UseCase {
     def apply(code: String, codePos: Span)(using Context): UseCase = {
       val tree = {
-        val tree = new Parser(SourceFile.virtual("<usecase>", code)).localDef(codePos.start)
+        val tree = Parsers.parser(SourceFile.virtual("<usecase>", code)).localDef(codePos.start)
         tree match {
           case tree: untpd.DefDef =>
             val newName = ctx.compilationUnit.freshNames.newName(tree.name, NameKinds.DocArtifactName)

compiler/src/dotty/tools/dotc/inlines/Inlines.scala

@@ -12,7 +12,7 @@ import SymDenotations.SymDenotation
 import config.Printers.inlining
 import ErrorReporting.errorTree
 import dotty.tools.dotc.util.{SourceFile, SourcePosition, SrcPos}
-import parsing.Parsers.Parser
+import parsing.Parsers
 import transform.{PostTyper, Inlining, CrossVersionChecks}
 import staging.StagingLevel
 
@@ -332,7 +332,7 @@ object Inlines:
         case ConstantType(Constant(code: String)) =>
           val source2 = SourceFile.virtual("tasty-reflect", code)
           inContext(ctx.fresh.setNewTyperState().setTyper(new Typer(ctx.nestingLevel + 1)).setSource(source2)) {
-            val tree2 = new Parser(source2).block()
+            val tree2 = Parsers.parser(source2).block()
             if ctx.reporter.allErrors.nonEmpty then
               ctx.reporter.allErrors.map((ErrorKind.Parser, _))
             else

compiler/src/dotty/tools/dotc/parsing/ParserPhase.scala

@@ -27,7 +27,7 @@ class Parser extends Phase {
     unit.untpdTree =
       if (unit.isJava) new JavaParsers.JavaParser(unit.source).parse()
       else {
-        val p = new Parsers.Parser(unit.source)
+        val p = Parsers.parser(unit.source)
         //  p.in.debugTokenStream = true
         val tree = p.parse()
         if (p.firstXmlPos.exists && !firstXmlPos.exists)