Re-write and Re-enable optimizer tests

Rewrite tests for new optimizer
  - SI-6941
  - SI-2171
  - t3430
  - t3252
  - t4840
  - t2171
  - t3430
  - t3252
  - t6157
  - t6547
  - t8062
  - t8306
  - t8359
  - t9123
  - trait-force-info
  - private-inline

test cases for bugs fixed in the new optimizer
  - SI-9160, the unnecessary boxing mentioned in the ticket is optimzied
    since push-pop elimination (#4858).
  - SI-8796
  - SI-8524
  - SI-7807

fix flags file for t3420

remove an empty flags file

remove unnecessary partest filters

explicit inliner warnings in test t7582

Restore the lisp test. Removing the flags file - our build runs with the
(new) optimizer enabled anyway.

The test spent the past few years as an optimizer test in pos/
see https://issues.scala-lang.org/browse/SI-4512. The attempt may fail,
but why not give it a try.

$ git lg -S"lisp"

...
| * | | | f785785 - SI-4579 Yoke the power of lisp.scala as a stress for the optimizer. (3 years, 8 months ago) <Jason Zaugg>
...
* | | | | | | 622cc99 - Revert the lisp test. (3 years, 10 months ago) <Paul Phillips>
...
* | | | | | | 97f0324 - Revived the lisp test. (3 years, 10 months ago) <Paul Phillips>
...
* | 1e0f7dc - Imprison the lisp test, no review. (4 years, 4 months ago) <Paul Phillips>
...
* | 6b09630 - "Freed the lisp test." Tweaked partest defaults... (4 years, 6 months ago) <Paul Phillips>
...
* | fec42c1 - Lisp test wins again, no review. (4 years, 8 months ago) <Paul Phillips>
...
* | 1c2d44d - Restored the lisp.scala test. (4 years, 8 months ago) <Paul Phillips>
...
* | 15ed892 - Temporarily sending lisp.scala to be interprete... (4 years, 8 months ago) <Paul Phillips>
...

1 files changed, 0 insertions, 23 deletions

diff --git a/test/files/pos/t8359-closelim-crash.scala b/test/files/pos/t8359-closelim-crash.scala
deleted file mode 100644
index 1413694d10..0000000000
--- a/test/files/pos/t8359-closelim-crash.scala
+++ /dev/null
@@ -1,23 +0,0 @@
-package test
-
-// This is a minimization of code that crashed the compiler during bootstrapping
-// in the first iteration of https://github.com/scala/scala/pull/4373, the PR
-// that adjusted the order of free and declared params in LambdaLift.
-
-// Was:
-//  java.lang.AssertionError: assertion failed:
-//  Record Record(<$anon: Function1>,Map(value a$1 -> Deref(LocalVar(value b)))) does not contain a field value b$1
-// at scala.tools.nsc.Global.assert(Global.scala:262)
-// at scala.tools.nsc.backend.icode.analysis.CopyPropagation$copyLattice$State.getFieldNonRecordValue(CopyPropagation.scala:113)
-// at scala.tools.nsc.backend.icode.analysis.CopyPropagation$copyLattice$State.getFieldNonRecordValue(CopyPropagation.scala:122)
-// at scala.tools.nsc.backend.opt.ClosureElimination$ClosureElim$$anonfun$analyzeMethod$1$$anonfun$apply$2.replaceFieldAccess$1(ClosureElimination.scala:124)
-class Typer {
-  def bar(a: Boolean, b: Boolean): Unit = {
-    @inline
-    def baz(): Unit = {
-      ((_: Any) => (Typer.this, a, b)).apply("")
-    }
-    ((_: Any) => baz()).apply("")
-  }
-}
-