Roll Dart SDK from 094c9024373c to 2ea89ef8f6de (1 revision) (flutter/engine#26030)

DEPS

@@ -35,7 +35,7 @@ vars = {
   # Dart is: https://github.com/dart-lang/sdk/blob/master/DEPS.
   # You can use //tools/dart/create_updated_flutter_deps.py to produce
   # updated revision list of existing dependencies.
-  'dart_revision': '094c9024373cd7eed440183cf623deb9682963e9',
+  'dart_revision': '2ea89ef8f6de01860980ff31feffe8d56a60b4f2',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py
@@ -51,7 +51,7 @@ vars = {
   'dart_resource_rev': '6b79867d0becf5395e5819a75720963b8298e9a7',
   'dart_root_certificates_rev': '7e5ec82c99677a2e5b95ce296c4d68b0d3378ed8',
   'dart_shelf_proxy_tag': 'v1.0.0',
-  'dart_shelf_static_rev': 'fa30419055279a00c9e428439b1abe362d18f25d',
+  'dart_shelf_static_rev': 'b8e51372332a27a4939466d94a22f15be53ac3e4',
   'dart_sse_tag': '5da8fedcdc56f306933d202e2d204753eecefd36',
   'dart_stack_trace_tag': '6788afc61875079b71b3d1c3e65aeaa6a25cbc2f',
   'dart_stream_channel_tag': 'd7251e61253ec389ee6e045ee1042311bced8f1d',
@@ -268,7 +268,7 @@ deps = {
    Var('dart_git') + '/resource.git' + '@' + Var('dart_resource_rev'),
 
   'src/third_party/dart/third_party/pkg/shelf':
-   Var('dart_git') + '/shelf.git@4b9294e29eb308709444a5c0b890fa8ccd69fae4',
+   Var('dart_git') + '/shelf.git@c511f06e6d2d28ffe905a45eea1da761b95ea0ca',
 
   'src/third_party/dart/third_party/pkg/shelf_packages_handler':
    Var('dart_git') + '/shelf_packages_handler.git@78302e67c035047e6348e692b0c1182131f0fe35',