Big merge from experimental to bleeding edge.

utils/pub/yaml/composer.dart

Index: utils/pub/yaml/composer.dart
diff --git a/utils/pub/yaml/composer.dart b/utils/pub/yaml/composer.dart
index 79aa27411d035893bbfb4b9ecad224eb5f1aa61a..e9c187969aa9dbcb51e277c80c08e4a4d0fde813 100644
--- a/utils/pub/yaml/composer.dart
+++ b/utils/pub/yaml/composer.dart
@@ -115,7 +115,7 @@ class _Composer extends _Visitor {
     var match = new RegExp("^[-+]?[0-9]+\$").firstMatch(content);
     if (match != null) {
       return new _ScalarNode(_Tag.yaml("int"),
-          value: Math.parseInt(match.group(0)));
+          value: int.parse(match.group(0)));
     }
 
     match = new RegExp("^0o([0-7]+)\$").firstMatch(content);
@@ -132,7 +132,7 @@ class _Composer extends _Visitor {
     match = new RegExp("^0x[0-9a-fA-F]+\$").firstMatch(content);
     if (match != null) {
       return new _ScalarNode(_Tag.yaml("int"),
-          value: Math.parseInt(match.group(0)));
+          value: int.parse(match.group(0)));
     }
 
     return null;
@@ -148,20 +148,20 @@ class _Composer extends _Visitor {
       // floats by removing the trailing dot.
       var matchStr = match.group(0).replaceAll(new RegExp(r"\.$"), "");
       return new _ScalarNode(_Tag.yaml("float"),
-          value: Math.parseDouble(matchStr));
+          value: double.parse(matchStr));
     }
 
     match = new RegExp("^([+-]?)\.(inf|Inf|INF)\$").firstMatch(content);
     if (match != null) {
       var infinityStr = match.group(1) == "-" ? "-Infinity" : "Infinity";
       return new _ScalarNode(_Tag.yaml("float"),
-          value: Math.parseDouble(infinityStr));
+          value: double.parse(infinityStr));
     }
 
     match = new RegExp("^\.(nan|NaN|NAN)\$").firstMatch(content);
     if (match != null) {
       return new _ScalarNode(_Tag.yaml("float"),
-          value: Math.parseDouble("NaN"));
+          value: double.parse("NaN"));
     }
 
     return null;