Issue 29303. Prefer import updates and SDK imports over other imports.

pkg/analysis_server/lib/src/services/correction/fix.dart

Index: pkg/analysis_server/lib/src/services/correction/fix.dart
diff --git a/pkg/analysis_server/lib/src/services/correction/fix.dart b/pkg/analysis_server/lib/src/services/correction/fix.dart
index fc6dcd5785a058a8a16533c69a59f3f55041b694..4be5247efe4e2abfd00479a89524061ec24c440c 100644
--- a/pkg/analysis_server/lib/src/services/correction/fix.dart
+++ b/pkg/analysis_server/lib/src/services/correction/fix.dart
@@ -177,9 +177,9 @@ class DartFixKind {
   static const IMPORT_LIBRARY_PROJECT3 =
       const FixKind('IMPORT_LIBRARY_PROJECT3', 49, "Import library '{0}'");
   static const IMPORT_LIBRARY_SDK =
-      const FixKind('IMPORT_LIBRARY_SDK', 49, "Import library '{0}'");
+      const FixKind('IMPORT_LIBRARY_SDK', 46, "Import library '{0}'");
   static const IMPORT_LIBRARY_SHOW =
-      const FixKind('IMPORT_LIBRARY_SHOW', 49, "Update library '{0}' import");
+      const FixKind('IMPORT_LIBRARY_SHOW', 45, "Update library '{0}' import");
   static const INSERT_SEMICOLON =
       const FixKind('INSERT_SEMICOLON', 50, "Insert ';'");
   static const LINT_ADD_OVERRIDE =