WIP: prevent posttyper running on java with -Ytest-pickler

Author: bishabosha

Diff for: compiler/src/dotty/tools/dotc/core/Phases.scala

@@ -346,12 +346,14 @@ object Phases {
     def runOn(units: List[CompilationUnit])(using runCtx: Context): List[CompilationUnit] =
       val buf = List.newBuilder[CompilationUnit]
       // factor out typedAsJava check when not needed
-      val doSkipJava = ctx.settings.YjavaTasty.value && this <= sbtExtractAPIPhase && skipIfJava
+      val doCheckJava =
+        ctx.settings.YjavaTasty.value
+        && (!sbtExtractAPIPhase.exists || this <= sbtExtractAPIPhase)
       for unit <- units do
         given unitCtx: Context = runCtx.fresh.setPhase(this.start).setCompilationUnit(unit).withRootImports
         if ctx.run.enterUnit(unit) then
           try
-            if doSkipJava && unit.typedAsJava then
+            if doCheckJava && skipIfJava && unit.typedAsJava then
               ()
             else
               run

Diff for: sbt-test/pipelining/Yjava-tasty-fromjavaobject/build.sbt

@@ -2,7 +2,7 @@ lazy val a = project.in(file("a"))
   .settings(
     compileOrder := CompileOrder.Mixed, // ensure we send java sources to Scala compiler
     scalacOptions += "-Yjava-tasty", // enable pickling of java signatures
-    scalacOptions ++= Seq("-Yjava-tasty-output", ((ThisBuild / baseDirectory).value / "a-enum-java-tasty.jar").toString),
+    scalacOptions ++= Seq("-Yearly-tasty-output", ((ThisBuild / baseDirectory).value / "a-enum-java-tasty.jar").toString),
     scalacOptions += "-Ycheck:all",
     Compile / classDirectory := ((ThisBuild / baseDirectory).value / "a-enum-classes"), // send classfiles to a different directory
   )
@@ -14,7 +14,7 @@ lazy val aCheck = project.in(file("a-check"))
     Compile / sources := (a / Compile / sources).value, // use the same sources as a
     compileOrder := CompileOrder.Mixed, // ensure we send java sources to Scala compiler
     scalacOptions += "-Yjava-tasty", // enable pickling of java signatures
-    scalacOptions ++= Seq("-Yjava-tasty-output", ((ThisBuild / baseDirectory).value / "a-enum-java-tasty-2.jar").toString),
+    scalacOptions ++= Seq("-Yearly-tasty-output", ((ThisBuild / baseDirectory).value / "a-enum-java-tasty-2.jar").toString),
     Compile / classDirectory := ((ThisBuild / baseDirectory).value / "a-enum-classes-2"), // send classfiles to a different directory
   )