CompletionSuggestion API for arg list text ranges.

pkg/analysis_server/tool/spec/spec_input.html

Index: pkg/analysis_server/tool/spec/spec_input.html
diff --git a/pkg/analysis_server/tool/spec/spec_input.html b/pkg/analysis_server/tool/spec/spec_input.html
index 24bbf4898e33883fcf25a9aa09f657ae0ad40bd8..74768c106a1ca46bbc4023863b032d41aa236701 100644
--- a/pkg/analysis_server/tool/spec/spec_input.html
+++ b/pkg/analysis_server/tool/spec/spec_input.html
@@ -2439,6 +2439,14 @@
               source contents on the client side.
             </p>
           </field>
+          <field name="defaultArgumentListTextRanges" optional="true">
+            <list><ref>int</ref></list>
+            <p>
+              Pairs of offsets and lengths describing 'defaultArgumentListString'
+              text ranges suitable for use by clients to set up linked edits of
+              default argument source contents.

[Brian Wilkerson, 2017/03/02 00:00:53]

An example would help here.

[pquitslund, 2017/03/02 00:09:40]

Good idea.  Done.

+            </p>
+          </field>
           <field name="element" optional="true">
             <ref>Element</ref>
             <p>