Use pub_semver package in pub.

sdk/lib/_internal/pub_generated/lib/src/solver/solve_report.dart

Index: sdk/lib/_internal/pub_generated/lib/src/solver/solve_report.dart
diff --git a/sdk/lib/_internal/pub_generated/lib/src/solver/solve_report.dart b/sdk/lib/_internal/pub_generated/lib/src/solver/solve_report.dart
index b4902e0887e55640e50ed5faace804fc6045c17e..f4603f24db74506ecd3aca16fad0c199b4433e55 100644
--- a/sdk/lib/_internal/pub_generated/lib/src/solver/solve_report.dart
+++ b/sdk/lib/_internal/pub_generated/lib/src/solver/solve_report.dart
@@ -1,10 +1,10 @@
 library pub.solver.solve_report;
+import 'package:pub_semver/pub_semver.dart';
 import '../lock_file.dart';
 import '../log.dart' as log;
 import '../package.dart';
 import '../source_registry.dart';
 import '../utils.dart';
-import '../version.dart';
 import 'version_solver.dart';
 class SolveReport {
   final SolveType _type;