chore(intl): support newer version of "intl"

Angular's pubspec for intl spans versions with breaking changes.  For
Angular, a change in date formatting would be a breaking change but
changes do to CLDR updates are not breaking changes.  This commit
updates a test to swap out a locale with a CLDR update to one that
wasn't updated to enable it to pass across the CLDR breaking change.

Closes #1203

Author: alan-knight

pubspec.yaml

@@ -21,7 +21,7 @@ dependencies:
   collection: '>=0.9.1 <1.0.0'
   di: '>=2.0.1 <3.0.0'
   html5lib: '>=0.10.0 <0.11.0'
-  intl: '>=0.8.7 <0.10.0'
+  intl: '>=0.8.7 <0.12.0'
   perf_api: '>=0.0.8 <0.1.0'
   route_hierarchical: '>=0.4.21 <0.5.0'
   web_components: '>=0.3.3 <0.4.0'

test/formatter/date_spec.dart

@@ -47,7 +47,13 @@ void main() {
     });
 
     it('should accept various locales', async(() {
-      expect(Intl.withLocale('de', () => date(noon, "medium"))).toEqual('3. Sep 2010 12:05:08');
+      // Angular's pubspec for intl spans versions with breaking changes.  This
+      // is ok for Angular, because they are not breaking changes for us (e.g.
+      // date formatting changes would be breaking changes, but CLDR updates are
+      // not.)  The tests below use SV and FR which are mostly stable across
+      // different versions of the intl package (as opposed to DE which received
+      // CLDR updates.)
+      expect(Intl.withLocale('sv', () => date(noon, "medium"))).toEqual('3 sep 2010 12:05:08');
       expect(Intl.withLocale('fr', () => date(noon, "medium"))).toEqual('3 sept. 2010 12:05:08');
     }));
   });