Version 1.19.0-dev.2.3

Cherry-pick 8230749e116805bba2aee62321815b0b3a5526cb to dev
Cherry-pick eb2b2bcda9c86052eac06f3561ce2e79cc338e0e to dev
Cherry-pick 3d58d8a7d801fafd71bea8e8556049ba61a4e092 to dev
Cherry-pick 91d079b7cf8782993d44e7475b51dd46d7c49e2a to dev
Cherry-pick 508dbbe1c9056b76f3317fcea79cc63815df167c to dev
diff --git a/DEPS b/DEPS
index a1370c5..f7b6c5e 100644
--- a/DEPS
+++ b/DEPS
@@ -56,7 +56,7 @@
   "dart_services_rev" : "@7aea2574e6f3924bf409a80afb8ad52aa2be4f97",
   "dart_style_tag": "@0.2.4",
   "dartdoc_tag" : "@v0.9.6+2",
-  "dev_compiler_rev": "@930e1bd50d27e5156b137cbf263fec509812e3ee",
+  "dev_compiler_rev": "@9cc982b90f57c6132f648b0041c0b03bd23fcbfc",
   "fixnum_tag": "@0.10.5",
   "func_rev": "@8d4aea75c21be2179cb00dc2b94a71414653094e",
   "glob_rev": "@704cf75e4f26b417505c5c611bdaacd8808467dd",
diff --git a/tools/VERSION b/tools/VERSION
index db5af05..064bcd1 100644
--- a/tools/VERSION
+++ b/tools/VERSION
@@ -28,4 +28,4 @@
 MINOR 19
 PATCH 0
 PRERELEASE 2
-PRERELEASE_PATCH 2
+PRERELEASE_PATCH 3