Part 9 - fix CodeGen integration tests for Scala 3

- update com-lihaoyi/sourcecode to use new macro implementation
- fix callgraph 4-actors test: account for private[this] inferrence
- fix - callgraph 8-linked-list-scala test: account for new override semantics
- fix 5-parser codesig test to account for new expansion
- use custom SAM type in lambda tests for scala (specialisation dropped in scala 3)
- tweak CodeSig ignoreCall logic to account for Scala 3 lambdas
- update some dependencies so invalidation tests actually run
- fix indentation in codesig tests

Author: bishabosha

build.mill

@@ -177,12 +177,12 @@ object Deps {
   val scalacScoverage2Serializer =
     ivy"org.scoverage::scalac-scoverage-serializer:${scoverage2Version}"
   val scalaparse = ivy"com.lihaoyi::scalaparse:${fastparse.version}"
-  val scalatags = ivy"com.lihaoyi::scalatags:0.12.0"
+  val scalatags = ivy"com.lihaoyi::scalatags:0.12.0".withDottyCompat(scalaVersion)
   def scalaXml = ivy"org.scala-lang.modules::scala-xml:2.3.0"
   // keep in sync with doc/antora/antory.yml
   val semanticDBscala = ivy"org.scalameta:::semanticdb-scalac:4.9.9"
   val semanticDbJava = ivy"com.sourcegraph:semanticdb-java:0.10.3"
-  val sourcecode = ivy"com.lihaoyi::sourcecode:0.3.1"
+  val sourcecode = ivy"com.lihaoyi::sourcecode:0.4.3-M1"
   val upickle = ivy"com.lihaoyi::upickle:3.3.1"
   val windowsAnsi = ivy"io.github.alexarchambault.windows-ansi:windows-ansi:0.0.5"
   val zinc = ivy"org.scala-sbt::zinc:1.10.2".withDottyCompat(scalaVersion)

integration/invalidation/codesig-hello/src/CodeSigHelloTests.scala

@@ -21,7 +21,8 @@ object CodeSigHelloTests extends UtestIntegrationTestSuite {
       modifyFile(workspacePath / "build.mill", _.replace("running foo", "running foo2"))
       val mangledFoo = eval("foo")
 
-      assert(mangledFoo.out.linesIterator.toSeq == Seq("running foo2", "running helperFoo"))
+      val out1 = mangledFoo.out.linesIterator.toSeq
+      assert(out1 == Seq("running foo2", "running helperFoo"))
 
       val cached2 = eval("foo")
       assert(cached2.out == "")

integration/invalidation/codesig-scalamodule/src/CodeSigScalaModuleTests.scala

@@ -101,14 +101,18 @@ object CodeSigScalaModuleTests extends UtestIntegrationTestSuite {
       )
 
       // Adding newlines in various places doesn't invalidate anything
+      // (preserving the indentation to avoid warnings in Scala 3).
       modifyFile(
         workspacePath / "build.mill",
         s =>
           "\n\n\n" +
-            s.replace("def scalaVersion", "\ndef scalaVersion\n")
-              .replace("def sources", "\ndef sources\n")
-              .replace("def compile", "\ndef compile\n")
-              .replace("def run", "\ndef run\n")
+            s.replace("\n  def scalaVersion", "\n\n  def scalaVersion")
+              .replace("\n  def sources = T{\n", "\n\n  def sources = T{\n\n")
+              .replace("\n  def compile = T {\n", "\n\n  def compile = T {\n\n")
+              .replace(
+                "\n  def run(args: Task[Args] = T.task(Args())) = T.command {\n",
+                "\n\n  def run(args: Task[Args] = T.task(Args())) = T.command {\n\n"
+              )
       )
       val mangledFoo6 = eval("foo.run")
       assert(

integration/invalidation/invalidation/resources/build.mill

@@ -1,7 +1,7 @@
 package build
 import mill._
 import $packages._
-import $ivy.`org.scalaj::scalaj-http:2.4.2`
+import $ivy.`org.scalaj:scalaj-http_2.13:2.4.2`
 
 def task = Task {
   build.a.input()

integration/invalidation/multi-level-editing/resources/mill-build/build.mill

@@ -3,7 +3,7 @@ import $meta._
 import mill._, scalalib._
 
 object `package` extends MillBuildRootModule {
-  def ivyDeps = Agg(ivy"com.lihaoyi::scalatags:${constant.MetaConstant.scalatagsVersion}")
+  def ivyDeps = Agg(ivy"com.lihaoyi:scalatags_2.13:${constant.MetaConstant.scalatagsVersion}")
 
   def generatedSources = Task {
     os.write(

main/codesig/test/cases/callgraph/basic/17-scala-lambda/src/Hello.scala

@@ -1,9 +1,14 @@
 package hello
 
 object Hello {
+
+  trait MyFunction0[T] {
+    def apply(): T
+  }
+
   def main(): Int = {
 
-    val foo = () => used()
+    val foo: MyFunction0[Int] = () => used()
     foo()
   }
   def used(): Int = 2