Convert alias val/types to exports (#5474)

Taking advantage of new Scala 3 syntax

---------

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

Author: lihaoyi

core/api/src/mill/api/Evaluator.scala

@@ -2,7 +2,7 @@ package mill.api
 
 import mill.api.daemon.internal.{CompileProblemReporter, TestReporter}
 import mill.api.*
-import mill.api.internal.Watchable
+import mill.api.daemon.Watchable
 import mill.api.BuildCtx
 import mill.api.daemon.internal.{EvaluatorApi, TaskApi}
 import scala.util.DynamicVariable

core/api/src/mill/api/Mirrors.scala

@@ -1,10 +1,12 @@
 package mill.api
 
-import mill.api.internal.internal
+import mill.api.daemon.internal.internal
 
 import scala.quoted.*
 import scala.deriving.Mirror
 
+import mill.api.daemon.internal.internal
+
 @internal
 object Mirrors {
 

core/api/src/mill/api/internal/Applicative.scala

@@ -1,6 +1,6 @@
 package mill.api.internal
 
-import mill.api.internal.internal
+import mill.api.daemon.internal.internal
 import scala.annotation.compileTimeOnly
 
 import scala.quoted.*

core/api/src/mill/api/internal/WatchSig.scala

@@ -1,5 +1,5 @@
 package mill.api.internal
-
+import mill.api.daemon.Watchable
 import mill.api.PathRef
 
 private[mill] object WatchSig {

core/api/src/mill/api/internal/package.scala

@@ -4,4 +4,4 @@ package mill
  * Core language-agnostic Mill APIs for use in your build files to define
  * [[Task]]s, [[Module]]s, etc.
  */
-package object api {}
+package object api

core/api/src/mill/api/package.scala

@@ -5,7 +5,8 @@ import mill.api.daemon.internal.{CompileProblemReporter, ExecutionResultsApi, Te
 import mill.constants.OutFiles
 import mill.constants.OutFiles.*
 import mill.api.{PathRef, *}
-import mill.api.internal.{ResolveChecker, Watchable}
+import mill.api.internal.ResolveChecker
+import mill.api.daemon.Watchable
 import mill.exec.{Execution, PlanImpl}
 import mill.resolve.Resolve
 

core/eval/src/mill/eval/EvaluatorImpl.scala

@@ -3,7 +3,8 @@ package mill.androidlib
 import coursier.params.ResolutionParams
 import mill.*
 import mill.api.Logger
-import mill.api.internal.{internal, *}
+import mill.api.internal.*
+import mill.api.daemon.internal.internal
 import mill.api.{ModuleRef, PathRef, Task}
 import mill.javalib.*
 import os.{Path, RelPath, zip}

libs/androidlib/src/mill/androidlib/AndroidAppModule.scala

@@ -1,6 +1,6 @@
 package mill.androidlib
 
-import mill.api.internal.internal
+import mill.api.daemon.internal.internal
 
 private[androidlib] object ComposeRenderer {
 

libs/androidlib/src/mill/androidlib/ComposeRenderer.scala

@@ -2,7 +2,7 @@ package mill.main.buildgen
 
 import geny.Generator
 import mainargs.{Flag, arg}
-import mill.api.internal.internal
+import mill.api.daemon.internal.internal
 import mill.constants.CodeGenConstants.{nestedBuildFileNames, rootBuildFileNames, rootModuleAlias}
 import mill.main.buildgen.BuildObject.Companions
 import mill.internal.Util.backtickWrap