SI-5900 Fix pattern inference regression

This commit does not close SI-5900. It only addresses a regression
in 2.11 prereleases caused by SI-7886.

The fix for SI-7886 was incomplete (as shown by the last commit)
and incorrect (as shown by the regression in pos/t5900a.scala and
the fact it ended up inferring type parameters.)

I believe that the key to fixing this problem will be unifying
the inference of case class constructor patterns and extractor
patterns.

I've explored that idea:

  https://gist.github.com/retronym/7704153
  https://github.com/retronym/scala/compare/ticket/5900

But didn't quite get there.

1 files changed, 6 insertions, 6 deletions

diff --git a/test/files/neg/t6829.check b/test/files/neg/t6829.check
index a0b43e3b52..914a1c9260 100644
--- a/test/files/neg/t6829.check
+++ b/test/files/neg/t6829.check
@@ -16,32 +16,32 @@ t6829.scala:49: error: not found: value nextState
         val (s,a,s2) = (state,actions(agent),nextState)
                                              ^
 t6829.scala:50: error: type mismatch;
- found   : s.type (with underlying type T1)
+ found   : s.type (with underlying type Any)
  required: _53.State where val _53: G
         val r = rewards(agent).r(s,a,s2)
                                  ^
 t6829.scala:50: error: type mismatch;
- found   : a.type (with underlying type T2)
+ found   : a.type (with underlying type Any)
  required: _53.Action where val _53: G
         val r = rewards(agent).r(s,a,s2)
                                    ^
 t6829.scala:50: error: type mismatch;
- found   : s2.type (with underlying type T3)
+ found   : s2.type (with underlying type Any)
  required: _53.State where val _53: G
         val r = rewards(agent).r(s,a,s2)
                                      ^
 t6829.scala:51: error: type mismatch;
- found   : s.type (with underlying type T1)
+ found   : s.type (with underlying type Any)
  required: _50.State
         agent.learn(s,a,s2,r): G#Agent
                     ^
 t6829.scala:51: error: type mismatch;
- found   : a.type (with underlying type T2)
+ found   : a.type (with underlying type Any)
  required: _50.Action
         agent.learn(s,a,s2,r): G#Agent
                       ^
 t6829.scala:51: error: type mismatch;
- found   : s2.type (with underlying type T3)
+ found   : s2.type (with underlying type Any)
  required: _50.State
         agent.learn(s,a,s2,r): G#Agent
                         ^