692dfb3 update compilation rules for null-safety (flutter/engine#19386)

engine-flutter-autoroll · engine-flutter-autoroll · commit a6738c5e4541 · 2020-06-29T22:57:00.000Z
diff --git a/bin/internal/engine.version b/bin/internal/engine.version
@@ -1 +1 @@
-2ff740e9f8b5f22319b83469ad899d1f3e376118
+692dfb3fcaa34be7efa395208644b571abafba62
