Give structured information about imports and export in the service's library response.

runtime/vm/service/service.md

Index: runtime/vm/service/service.md
diff --git a/runtime/vm/service/service.md b/runtime/vm/service/service.md
index f9ee96a532367a6626a42d406e3872ae66cfbd85..af2259bdde8e4396e3618a1949b87c3072cd1d50 100644
--- a/runtime/vm/service/service.md
+++ b/runtime/vm/service/service.md
@@ -1297,7 +1297,7 @@ class Library extends Object {
   string uri;
 
   // A list of the imports for this library.
-  @Library[] imports;
+  LibraryDependency[] dependencies;
 
   // A list of the scripts which constitute this library.
   @Script[] scripts;
@@ -1315,6 +1315,24 @@ class Library extends Object {
 
 A _Library_ provides information about a Dart language library.
 
+```
+class LibraryDependency {

[turnidge, 2015/05/28 20:10:28]

Note for future reviews... Each type has its own ### section and is added to the
TOC.

I'm updating this in my current cl...

+  // Is this dependency an import (rather than an export)?
+  bool isImport;
+
+  // Is this dependency deferred?
+  bool isDeferred;
+
+  // The prefix of an 'as' import, or null.
+  String prefix;
+
+  // The library being imported or exported.
+  @Library target;
+}
+```
+
+A _LibraryDependency_ provides information about an import or export.
+
 ### List
 
 ```