Remove usage of deprecated `onError` argument to `int.parse` and `double.parse`. (dart-lang/yaml#43)

pkgs/yaml/CHANGELOG.md

diff --git a/pkgs/yaml/CHANGELOG.md b/pkgs/yaml/CHANGELOG.md
index fd41fdb..ce42469 100644
--- a/pkgs/yaml/CHANGELOG.md
+++ b/pkgs/yaml/CHANGELOG.md
@@ -1,5 +1,6 @@
 ## 2.1.14
 
+* Remove use of deprecated features.
 * Updated SDK version to 2.0.0-dev.17.0
 
 ## 2.1.13

pkgs/yaml/lib/src/loader.dart

diff --git a/pkgs/yaml/lib/src/loader.dart b/pkgs/yaml/lib/src/loader.dart
index d00fc2c..956b17c 100644
--- a/pkgs/yaml/lib/src/loader.dart
+++ b/pkgs/yaml/lib/src/loader.dart
@@ -302,12 +302,12 @@
 
     // Hexadecimal or octal integers.
     if (allowInt && firstChar == $0) {
-      // int.parse supports 0x natively.
-      if (secondChar == $x) return int.parse(contents, onError: (_) => null);
+      // int.tryParse supports 0x natively.
+      if (secondChar == $x) return int.tryParse(contents);
 
       if (secondChar == $o) {
         var afterRadix = contents.substring(2);
-        return int.parse(afterRadix, radix: 8, onError: (_) => null);
+        return int.tryParse(afterRadix, radix: 8);
       }
     }
 
@@ -321,10 +321,10 @@
       if (allowInt) {
         // Pass "radix: 10" explicitly to ensure that "-0x10", which is valid
         // Dart but invalid YAML, doesn't get parsed.
-        result = int.parse(contents, radix: 10, onError: (_) => null);
+        result = int.tryParse(contents, radix: 10);
       }
 
-      if (allowFloat) result ??= double.parse(contents, (_) => null);
+      if (allowFloat) result ??= double.tryParse(contents);
       return result;
     }
 
@@ -348,7 +348,7 @@
         }
       }
 
-      return double.parse(contents, (_) => null);
+      return double.tryParse(contents);
     }
 
     if (length == 4 && firstChar == $dot) {

pkgs/yaml/pubspec.yaml

diff --git a/pkgs/yaml/pubspec.yaml b/pkgs/yaml/pubspec.yaml
index b60d7cc..8f520c5 100644
--- a/pkgs/yaml/pubspec.yaml
+++ b/pkgs/yaml/pubspec.yaml
@@ -4,7 +4,7 @@
 homepage: https://github.com/dart-lang/yaml
 description: A parser for YAML.
 environment:
-  sdk: '>=2.0.0-dev.17.0 <2.0.0'
+  sdk: '>=2.0.0-dev.49.0 <2.0.0'
 dependencies:
   charcode: "^1.1.0"
   collection: ">=1.1.0 <2.0.0"