SI-8029 Avoid multi-run cyclic error with companions, package object

The bug report suggests this problem only became visible in the
IDE *after* 2.10.3, but I tested an IDE with exactly 2.10.3 and
saw the same problem.

In fact, my test case fails as far back as 2.10.0. I suspect the
problem showed up after 816cecf9a9, which checks that pairs of
companion symbols are codefined eagerly in Namers.

This commit modifies the check of `rawInfo ne NoType`
in `isCoDefinedWith` to avoid triggering adaptation of types from
the previous run. I'm not sure of the precise intent of that check.
I looked at c9861cd198 (genesis of isCoDefinedWith). Before that we
get back to 3761cb4b3a1 (the dawn of Subversion.)

1 files changed, 4 insertions, 0 deletions

diff --git a/bincompat-forward.whitelist.conf b/bincompat-forward.whitelist.conf
index 2ece671638..3b61a02bce 100644
--- a/bincompat-forward.whitelist.conf
+++ b/bincompat-forward.whitelist.conf
@@ -1431,6 +1431,10 @@ filter {
         {
             matchName="scala.reflect.internal.Trees#Modifiers.isDeferredNotDefault"
             problemName=MissingMethodProblem
+        },
+        {
+           matchName="scala.reflect.internal.Symbols#Symbol.rawInfoIsNoType"
+           problemName=MissingMethodProblem
         }
     ]
 }