Made -Xfatal-warnings less immediately fatal.

Instead of changing warnings to errors mid-stream, at the end of
a run I check for condition "no errors, some warnings, and fatal
warnings" and then generate an error at that point.  This is
necessary to test for some warnings which come from later stages.

1 files changed, 7 insertions, 5 deletions

diff --git a/test/files/neg/check-dead.check b/test/files/neg/check-dead.check
index 29601c1d4a..2150a942bf 100644
--- a/test/files/neg/check-dead.check
+++ b/test/files/neg/check-dead.check
@@ -1,13 +1,15 @@
-check-dead.scala:7: error: dead code following this construct
+check-dead.scala:7: warning: dead code following this construct
   def z1 = y1(throw new Exception)  // should warn
               ^
-check-dead.scala:10: error: dead code following this construct
+check-dead.scala:10: warning: dead code following this construct
   def z2 = y2(throw new Exception)  // should warn
               ^
-check-dead.scala:29: error: dead code following this construct
+check-dead.scala:29: warning: dead code following this construct
     throw new Exception // should warn
     ^
-check-dead.scala:33: error: dead code following this construct
+check-dead.scala:33: warning: dead code following this construct
     throw new Exception // should warn
     ^
-four errors found
+error: No warnings can be incurred under -Xfatal-warnings.
+four warnings found
+one error found