Roll src/third_party/dart fde6a5917e..e3edfd36b2 (14 commits)

e3edfd36b2 [vm/snapshots] Finalize and sort all classes in snapshots with compilation trace
93481167a6 Add innerText field to Element class
a17b52c2c1 Revert "[vm, compiler] Unoptimized megamorphic calls."
7d1b54bd47 Add a minimal implementation of ExtensionDeclaration
07a45e9d4c [cfe] Transform collections before set literals
bbd22cb8ff Changes that slipped through rebasing
978dc6b372 [vm/compiler] Remove left-over free in unit_test.cc (we attach a finalizer now to the ExternalTypedData)
4317c5ff3f Don't set elements and types during AstRewriteVisitor.
6457ac1d4b Test potentially-nullable access errors
ab6aeaa106 [vm/kernel] Use GC-tracked ExternalTypedData/TypedDataView for kernel buffers
2bbb2f3c1f Disallow implicit casts
add95652d2 fix AstBuilder invalid getter recovery
79062c7587 Revert "[Test] Remove some dead code."
27e1c91c39 Add src/diagnostics test for assert(bool?)

DEPS

@@ -31,7 +31,7 @@ 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': 'fde6a5917e952149c585ee112b017d632d0de4eb',
+  'dart_revision': 'e3edfd36b2aa7ff4e98fe541ef5666ef2e70d17e',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py

ci/licenses_golden/licenses_third_party

-Signature: 2d612c9bea682d4f1b15b644a61ac185
+Signature: 2e22bb4d2e9d03c0668f0861febd8213
 
 UNUSED LICENSES: