Allow ClassName_methodName for a message name, easier to disambiguate duplicates

README.md

 Intl
 ====
 
 This package provides internationalization and localization facilities,
 including message translation, plurals and genders, date/number formatting
 and parsing, and bidirectional text.
 
 ## General
 The most important library is [intl][intl_lib]. It defines the [Intl][Intl]
 class, with the default locale and methods for accessing most of the
@@ skipping 77 matching lines @@
           "Hit any key to continue",
           name: "continueMessage",
           args: [],
           desc: "Explains that we will not proceed further until "
               "the user presses a key");
       print(continueMessage());
 
 This provides, in addition to the basic message string, a name, a
 description for translators, the arguments used in the message, and
 examples. The `name` and `args` parameters are required, and must
-match the name and arguments list of the function.  In the future we
+match the name (or ClassName_methodName) and arguments list of the
+function respectively.  In the future we
 hope to have these provided automatically.
 
 This can be run in the program before any translation has been done,
 and will just return the message string. It can also be extracted to a
 file and then be made to return a translated version without modifying
 the original program. See "Extracting Messages" below for more
 details.
 
 The purpose of wrapping the message in a function is to allow it to
 have parameters which can be used in the result. The message string is
@@ skipping 203 matching lines @@
 [NumberFormat]: https://api.dartlang.org/apidocs/channels/stable/dartdoc-viewer/intl/intl.NumberFormat
 [withLocale]: https://api.dartlang.org/apidocs/channels/stable/dartdoc-viewer/intl/intl.Intl#id_withLocale
 [defaultLocale]: https://api.dartlang.org/apidocs/channels/stable/dartdoc-viewer/intl/intl.Intl#id_defaultLocale
 [Intl.message]: https://api.dartlang.org/apidocs/channels/stable/dartdoc-viewer/intl/intl.Intl#id_message
 [Intl.plural]: https://api.dartlang.org/apidocs/channels/stable/dartdoc-viewer/intl/intl.Intl#id_plural
 [Intl.gender]: https://api.dartlang.org/apidocs/channels/stable/dartdoc-viewer/intl/intl.Intl#id_gender
 [DateTime]: https://api.dartlang.org/apidocs/channels/stable/dartdoc-viewer/dart:core.DateTime
 [BidiFormatter]: https://api.dartlang.org/apidocs/channels/stable/dartdoc-viewer/intl/intl.BidiFormatter
 [BidiFormatter.RTL]: https://api.dartlang.org/apidocs/channels/stable/dartdoc-viewer/intl/intl.BidiFormatter#id_BidiFormatter-RTL
 [BidiFormatter.LTR]: https://api.dartlang.org/apidocs/channels/stable/dartdoc-viewer/intl/intl.BidiFormatter#id_BidiFormatter-LTR