moving patmat to its own phase

sort field accessors, necessary after typers -- apparently...

don't throw TypeError, use issueTypeError
don't run patmat phase when -Xoldpatmat
only virtualize matches when -Xexperimental

recycle cps type of match for re-typechecking:
  when one of the internal cps-type-state annotations is present, strip all CPS annotations
  a cps-type-state-annotated type makes no sense as an expected type (matchX.tpe is used as pt in translateMatch)

don't synth FunctionN impls during typer, only do this for PartialFunction
updated check now function synth for match is deferred until uncurry

patmat-transform try/catch with match in cps

cleanup in selective anf
remove TODO: can there be cases that are not CaseDefs -- nope

1 files changed, 1 insertions, 13 deletions

diff --git a/test/files/neg/patmat-type-check.check b/test/files/neg/patmat-type-check.check
index ab4451f089..e045841ce1 100644
--- a/test/files/neg/patmat-type-check.check
+++ b/test/files/neg/patmat-type-check.check
@@ -3,31 +3,19 @@ patmat-type-check.scala:22: error: scrutinee is incompatible with pattern type;
  required: String
   def f1 = "bob".reverse match { case Seq('b', 'o', 'b') => true } // fail
                                          ^
-patmat-type-check.scala:22: error: value _1 is not a member of object Seq
-  def f1 = "bob".reverse match { case Seq('b', 'o', 'b') => true } // fail
-                 ^
 patmat-type-check.scala:23: error: scrutinee is incompatible with pattern type;
  found   : Seq[A]
  required: Array[Char]
   def f2 = "bob".toArray match { case Seq('b', 'o', 'b') => true } // fail
                                          ^
-patmat-type-check.scala:23: error: value _1 is not a member of object Seq
-  def f2 = "bob".toArray match { case Seq('b', 'o', 'b') => true } // fail
-                 ^
 patmat-type-check.scala:27: error: scrutinee is incompatible with pattern type;
  found   : Seq[A]
  required: Test.Bop2
   def f3(x: Bop2) = x match { case Seq('b', 'o', 'b') => true } // fail
                                       ^
-patmat-type-check.scala:27: error: value _1 is not a member of object Seq
-  def f3(x: Bop2) = x match { case Seq('b', 'o', 'b') => true } // fail
-                    ^
 patmat-type-check.scala:30: error: scrutinee is incompatible with pattern type;
  found   : Seq[A]
  required: Test.Bop3[Char]
   def f4[T](x: Bop3[Char]) = x match { case Seq('b', 'o', 'b') => true } // fail
                                                ^
-patmat-type-check.scala:30: error: value _1 is not a member of object Seq
-  def f4[T](x: Bop3[Char]) = x match { case Seq('b', 'o', 'b') => true } // fail
-                             ^
-8 errors found
+four errors found