Add implicit constraints from pub onto stack_trace and source_maps.

sdk/lib/_internal/pub/test/implicit_barback_dependency_test.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 import 'descriptor.dart' as d;
 import 'test_pub.dart';
 import '../lib/src/barback.dart' as barback;
 import '../lib/src/version.dart';
 
 main() {
   initConfig();
 
-  var current = barback.supportedVersions.min.toString();
-  var previous = new Version(barback.supportedVersions.min.major,
-      barback.supportedVersions.min.minor - 1, 0).toString();
-  var nextPatch = barback.supportedVersions.min.nextPatch.toString();
-  var max = barback.supportedVersions.max.toString();
+  var constraint = barback.pubConstraints["barback"];
+  var current = constraint.min.toString();
+  var previous = new Version(constraint.min.major, constraint.min.minor - 1, 0)
+      .toString();
+  var nextPatch = constraint.min.nextPatch.toString();
+  var max = constraint.max.toString();
+
+  var sourceMapsVersion = barback.pubConstraints["source_maps"].min.toString();
+  var stackTraceVersion = barback.pubConstraints["stack_trace"].min.toString();
 
   forBothPubGetAndUpgrade((command) {
     integration("implicitly constrains barback to versions pub supports", () {
       servePackages([
         packageMap("barback", previous),
         packageMap("barback", current),
         packageMap("barback", nextPatch),
-        packageMap("barback", max)
+        packageMap("barback", max),
+        packageMap("source_maps", sourceMapsVersion),
+        packageMap("stack_trace", stackTraceVersion)
       ]);
 
       d.appDir({
         "barback": "any"
       }).create();
 
       pubCommand(command);
 
       d.packagesDir({
-        "barback": barback.supportedVersions.min.nextPatch.toString()
+        "barback": nextPatch
       }).validate();
     });
 
     integration("discovers transitive dependency on barback", () {
       servePackages([
         packageMap("barback", previous),
         packageMap("barback", current),
         packageMap("barback", nextPatch),
-        packageMap("barback", max)
+        packageMap("barback", max),
+        packageMap("source_maps", sourceMapsVersion),
+        packageMap("stack_trace", stackTraceVersion)
       ]);
 
       d.dir("foo", [
         d.libDir("foo", "foo 0.0.1"),
         d.libPubspec("foo", "0.0.1", deps: {
           "barback": "any"
         })
       ]).create();
 
       d.appDir({
         "foo": {"path": "../foo"}
       }).create();
 
       pubCommand(command);
 
       d.packagesDir({
         "barback": nextPatch,
         "foo": "0.0.1"
       }).validate();
     });
 
     integration("pub's implicit constraint uses the same source and "
-        "description as the explicit one", () {
+        "description as a dependency override", () {
+      servePackages([
+        packageMap("source_maps", sourceMapsVersion),
+        packageMap("stack_trace", stackTraceVersion)
+      ]);
+
       d.dir('barback', [
         d.libDir('barback', 'barback $current'),
-        d.libPubspec('barback', current)
+        d.libPubspec('barback', current),
       ]).create();
 
       d.dir(appPath, [
-        d.appPubspec({
-          "barback": {"path": "../barback"}
+        d.pubspec({
+          "name": "myapp",
+          "dependency_overrides": {
+            "barback": {"path": "../barback"}
+          }
         })
       ]).create();
 
       pubCommand(command);
 
       d.packagesDir({
         "barback": current
       }).validate();
     });
   });
 
   integration("unlock if the locked version doesn't meet pub's constraint", () {
     servePackages([
       packageMap("barback", previous),
-      packageMap("barback", current)
+      packageMap("barback", current),
+      packageMap("source_maps", sourceMapsVersion),
+      packageMap("stack_trace", stackTraceVersion)
     ]);
 
     d.appDir({"barback": "any"}).create();
 
     // Hand-create a lockfile to pin barback to an older version.
     createLockFile("myapp", hosted: {
       "barback": previous
     });
 
     pubGet();
 
     // It should be upgraded.
     d.packagesDir({
       "barback": current
     }).validate();
   });
 
   integration("includes pub in the error if a solve failed because there "
       "is no version available", () {
     servePackages([
-      packageMap("barback", previous)
+      packageMap("barback", previous),
+      packageMap("source_maps", sourceMapsVersion),
+      packageMap("stack_trace", stackTraceVersion)
     ]);
 
     d.appDir({"barback": "any"}).create();
 
     pubGet(error: """
-Package barback has no versions that match >=$current <$max derived from:
+Package barback 0.12.0 does not match >=$current <$max derived from:
 - myapp 0.0.0 depends on version any
 - pub itself depends on version >=$current <$max""");
   });
 
   integration("includes pub in the error if a solve failed because there "
       "is a disjoint constraint", () {
     servePackages([
-      packageMap("barback", current)
+      packageMap("barback", previous),
+      packageMap("barback", current),
+      packageMap("source_maps", sourceMapsVersion),
+      packageMap("stack_trace", stackTraceVersion)
     ]);
 
     d.appDir({"barback": previous}).create();
 
     pubGet(error: """
 Incompatible version constraints on barback:
 - myapp 0.0.0 depends on version $previous
 - pub itself depends on version >=$current <$max""");
   });
 }