[CFE] Clean out spread and if support from constant evaluator.

Change-Id: I01ab65980662183c94df3345796bafad2a335043
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/103125
Reviewed-by: Kevin Millikin <kmillikin@google.com>
Commit-Queue: Aske Simon Christensen <askesc@google.com>

https://dart.googlesource.com/sdk/+/c4e8cf469a0ff7c19fab0578b496b3593b17a1d5
diff --git a/commits.json b/commits.json
index d78bee1..99ccd57 100644
--- a/commits.json
+++ b/commits.json
@@ -1,5 +1,5 @@
 {
   "external/github.com/flutter/engine":"301f560bd835e462134b491f1d5a74d21d03f3a8",
   "external/github.com/flutter/flutter":"d5aae54a28a2ba04f5737752edba9f5c98259c6c",
-  "sdk":"f051cd5b4d156e7ae54c44ba19c343607c62d5df"
+  "sdk":"c4e8cf469a0ff7c19fab0578b496b3593b17a1d5"
 }
\ No newline at end of file