Enable the new optimizer when building scala

No change in build.sbt, there's no optimizer settings there yet.

Ignore the inliner warning in presentation/t7678 and run/t8029.scala,
noted in https://issues.scala-lang.org/browse/SI-9378

Author: lrytz

build-ant-macros.xml

@@ -6,7 +6,7 @@
     <attribute name="name"/>
     <sequential>
       <antcall target="@{name}">
-        <param name="scalac.args.optimise" value="-optimise"/>
+        <param name="scalac.args.optimise" value="-Yopt:l:classpath"/>
       </antcall>
     </sequential>
   </macrodef>

build.xml

@@ -19,7 +19,7 @@ ant $antArgs $scalacArgs $targets
 
 antArgs tend to be:
  -Darchives.skipxz=true
- -Dscalac.args.optimise=-optimise
+ -Dscalac.args.optimise=-Yopt:l:classpath
 
 scalacArgs examples:
   "-Dscalac.args=\"-Yrangepos\" -Dpartest.scalac_opts=\"-Yrangepos\""
@@ -79,13 +79,13 @@ TODO:
   <target name="publish-opt-nodocs" description="Publishes Scala (optimized) without generating docs/testing (library/reflect/compiler/swing).">
     <antcall target="publish">
       <param name="docs.skip" value="1"/>
-      <param name="scalac.args.optimise" value="-optimise"/>
+      <param name="scalac.args.optimise" value="-Yopt:l:classpath"/>
     </antcall>
   </target>
   <target name="publish-core-opt-nodocs" description="Builds an untested, undocumented optimised core (library/reflect/compiler) and publishes to maven.">
     <antcall target="publish-core">
       <param name="docs.skip" value="1"/>
-      <param name="scalac.args.optimise" value="-optimise"/>
+      <param name="scalac.args.optimise" value="-Yopt:l:classpath"/>
     </antcall>
   </target>
   <target name="publish-core-local-nodocs" description="Builds an untested, undocumented core (library/reflect/compiler) and locally publishes to maven">
@@ -1042,7 +1042,7 @@ TODO:
     <antcall target="publish-core-local">
       <param name="maven.version.suffix" value="-STARR-${git.commit.sha}-SNAPSHOT"/>
       <param name="docs.skip" value="1"/>
-      <param name="scalac.args.optimise" value="-optimise"/>
+      <param name="scalac.args.optimise" value="-Yopt:l:classpath"/>
       <param name="update.starr.version" value="alright then"/>
     </antcall>
   </target>

scripts/jobs/integrate/bootstrap

@@ -493,7 +493,7 @@ bootstrap() {
       -Dremote.snapshot.repository=NOPE\
       -Dremote.release.repository=$releaseTempRepoUrl\
       -Drepository.credentials.id=$releaseTempRepoCred\
-      -Dscalac.args.optimise=-optimise\
+      -Dscalac.args.optimise=-Yopt:l:classpath\
       -Ddocs.skip=1\
       -Dlocker.skip=1\
       $publishLockerPrivateTask >> $baseDir/logs/builds 2>&1
@@ -533,7 +533,7 @@ bootstrap() {
       -Dremote.snapshot.repository=NOPE\
       -Dremote.release.repository=$releaseTempRepoUrl\
       -Drepository.credentials.id=$releaseTempRepoCred\
-      -Dscalac.args.optimise=-optimise\
+      -Dscalac.args.optimise=-Yopt:l:classpath\
       $antBuildTask $publishPrivateTask
 
   # clear ivy cache (and to be sure, local as well), so the next round of sbt builds sees the fresh scala

scripts/jobs/validate/test

@@ -10,7 +10,7 @@ case $prDryRun in
     # build quick using STARR built upstream, as specified by scalaVersion
     # (in that sense it's locker, since it was built with starr by that upstream job)
     ant -Dstarr.version=$scalaVersion \
-       -Dscalac.args.optimise=-optimise \
+       -Dscalac.args.optimise=-Yopt:l:classpath \
        -Dlocker.skip=1 -Dextra.repo.url=$prRepoUrl \
        $testExtraArgs ${testTarget-test.core docs.done}
     ;;

test/files/presentation/t7678/Runner.scala

@@ -1,3 +1,6 @@
+/*
+ * filter: inliner warnings; re-run with
+ */
 import scala.tools.nsc.interactive.tests._
 import scala.reflect.internal.util._
 

test/files/run/t8029.scala

@@ -1,3 +1,6 @@
+/*
+ * filter: inliner warning; re-run with
+ */
 import scala.tools.partest._
 import scala.tools.nsc._