Use .packages instead of pubspec.yaml

pkg/dev_compiler/lib/src/compiler/js_typeref_codegen.dart

Index: pkg/dev_compiler/lib/src/compiler/js_typeref_codegen.dart
diff --git a/pkg/dev_compiler/lib/src/compiler/js_typeref_codegen.dart b/pkg/dev_compiler/lib/src/compiler/js_typeref_codegen.dart
index b43692d09b699aff46e20be3de8e47248b99a06f..28bb62697f891131c661f9ce32f210817f4a1133 100644
--- a/pkg/dev_compiler/lib/src/compiler/js_typeref_codegen.dart
+++ b/pkg/dev_compiler/lib/src/compiler/js_typeref_codegen.dart
@@ -52,8 +52,10 @@ abstract class JsTypeRefCodegen {
           for (var param in type.parameters) {
             if (param.parameterKind == ParameterKind.NAMED) break;
             var type = emitTypeRef(param.type);
-            args[new JS.Identifier(param.name)] = param.parameterKind ==
-                ParameterKind.POSITIONAL ? type.toOptional() : type;
+            args[new JS.Identifier(param.name)] =
+                param.parameterKind == ParameterKind.POSITIONAL
+                    ? type.toOptional()
+                    : type;
           }
           var namedParamType = emitNamedParamsArgType(type.parameters);
           if (namedParamType != null) {