Revert "Use native async/await support 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/lib/src/solver/solve_report.dart b/sdk/lib/_internal/pub_generated/lib/src/solver/solve_report.dart
similarity index 96%
copy from sdk/lib/_internal/pub/lib/src/solver/solve_report.dart
copy to sdk/lib/_internal/pub_generated/lib/src/solver/solve_report.dart
index 2a089b5d8010def715d949c6df9550a006fa19eb..4e6cfa603354f294ba7f0b2139bc8c5df0c90fac 100644
--- a/sdk/lib/_internal/pub/lib/src/solver/solve_report.dart
+++ b/sdk/lib/_internal/pub_generated/lib/src/solver/solve_report.dart
@@ -124,8 +124,7 @@ class SolveReport {
       overrides.sort((a, b) => a.compareTo(b));
 
       overrides.forEach(
-          (name) => _reportPackage(name, alwaysShow: true,
-              highlightOverride: false));
+          (name) => _reportPackage(name, alwaysShow: true, highlightOverride: false));
 
       log.warning(_output);
     }
@@ -136,14 +135,14 @@ class SolveReport {
   /// If [alwaysShow] is true, the package is reported even if it didn't change,
   /// regardless of [_type]. If [highlightOverride] is true (or absent), writes
   /// "(override)" next to overridden packages.
-  void _reportPackage(String name,
-      {bool alwaysShow: false, bool highlightOverride: true}) {
+  void _reportPackage(String name, {bool alwaysShow: false,
+      bool highlightOverride: true}) {
     var newId = _dependencies[name];
     var oldId = _previousLockFile.packages[name];
     var id = newId != null ? newId : oldId;
 
-    var isOverridden = _result.overrides.map(
-        (dep) => dep.name).contains(id.name);
+    var isOverridden =
+        _result.overrides.map((dep) => dep.name).contains(id.name);
 
     // If the package was previously a dependency but the dependency has
     // changed in some way.
@@ -246,4 +245,4 @@ class SolveReport {
       _output.write(" from ${id.source} $description");
     }
   }
-}
+}