Revert "Use native async/await support in pub."

sdk/lib/_internal/pub_generated/lib/src/validator/name.dart

Index: sdk/lib/_internal/pub_generated/lib/src/validator/name.dart
diff --git a/sdk/lib/_internal/pub/lib/src/validator/name.dart b/sdk/lib/_internal/pub_generated/lib/src/validator/name.dart
similarity index 51%
copy from sdk/lib/_internal/pub/lib/src/validator/name.dart
copy to sdk/lib/_internal/pub_generated/lib/src/validator/name.dart
index cdee078b2ede942718d57a2a4c8a66b108eb6327..8b558846e3f7cdecab76867a3c1fae09aae1b415 100644
--- a/sdk/lib/_internal/pub/lib/src/validator/name.dart
+++ b/sdk/lib/_internal/pub_generated/lib/src/validator/name.dart
@@ -14,35 +14,66 @@ import '../validator.dart';
 
 /// Dart reserved words, from the Dart spec.
 final _RESERVED_WORDS = [
-  "assert", "break", "case", "catch", "class", "const", "continue", "default",
-  "do", "else", "extends", "false", "final", "finally", "for", "if", "in", "is",
-  "new", "null", "return", "super", "switch", "this", "throw", "true", "try",
-  "var", "void", "while", "with"
-];
+    "assert",
+    "break",
+    "case",
+    "catch",
+    "class",
+    "const",
+    "continue",
+    "default",
+    "do",
+    "else",
+    "extends",
+    "false",
+    "final",
+    "finally",
+    "for",
+    "if",
+    "in",
+    "is",
+    "new",
+    "null",
+    "return",
+    "super",
+    "switch",
+    "this",
+    "throw",
+    "true",
+    "try",
+    "var",
+    "void",
+    "while",
+    "with"];
 
 /// A validator that validates the name of the package and its libraries.
 class NameValidator extends Validator {
   NameValidator(Entrypoint entrypoint)
-    : super(entrypoint);
+      : super(entrypoint);
 
   Future validate() {
     return new Future.sync(() {
-      _checkName(entrypoint.root.name, 'Package name "${entrypoint.root.name}"',
+      _checkName(
+          entrypoint.root.name,
+          'Package name "${entrypoint.root.name}"',
           isPackage: true);
 
       var libraries = _libraries;
       for (var library in libraries) {
         var libName = path.basenameWithoutExtension(library);
-        _checkName(libName, 'The name of "$library", "$libName",',
+        _checkName(
+            libName,
+            'The name of "$library", "$libName",',
             isPackage: false);
       }
 
       if (libraries.length == 1) {
         var libName = path.basenameWithoutExtension(libraries[0]);
         if (libName == entrypoint.root.name) return;
-        warnings.add('The name of "${libraries[0]}", "$libName", should match '
-            'the name of the package, "${entrypoint.root.name}".\n'
-            'This helps users know what library to import.');
+        warnings.add(
+            'The name of "${libraries[0]}", "$libName", should match '
+                'the name of the package, "${entrypoint.root.name}".\n'
+                'This helps users know what library to import.');
       }
     });
   }
@@ -51,11 +82,15 @@ class NameValidator extends Validator {
   /// to the package's root directory.
   List<String> get _libraries {
     var libDir = entrypoint.root.path("lib");
-    return entrypoint.root.listFiles(beneath: "lib")
-        .map((file) => path.relative(file, from: path.dirname(libDir)))
-        .where((file) => !path.split(file).contains("src") &&
-                         path.extension(file) == '.dart')
-        .toList();
+    return entrypoint.root.listFiles(
+        beneath: "lib").map(
+            (file) =>
+                path.relative(
+                    file,
+                    from: path.dirname(
+                        libDir))).where(
+                            (file) =>
+                                !path.split(file).contains("src") && path.extension(file) == '.dart').toList();
   }
 
   void _checkName(String name, String description, {bool isPackage}) {
@@ -65,18 +100,20 @@ class NameValidator extends Validator {
     if (name == "") {
       errors.add("$description may not be empty.");
     } else if (!new RegExp(r"^[a-zA-Z0-9_]*$").hasMatch(name)) {
-      messages.add("$description may only contain letters, numbers, and "
-          "underscores.\n"
-          "Using a valid Dart identifier makes the name usable in Dart code.");
+      messages.add(
+          "$description may only contain letters, numbers, and " "underscores.\n"
+              "Using a valid Dart identifier makes the name usable in Dart code.");
     } else if (!new RegExp(r"^[a-zA-Z_]").hasMatch(name)) {
-      messages.add("$description must begin with a letter or underscore.\n"
-          "Using a valid Dart identifier makes the name usable in Dart code.");
+      messages.add(
+          "$description must begin with a letter or underscore.\n"
+              "Using a valid Dart identifier makes the name usable in Dart code.");
     } else if (_RESERVED_WORDS.contains(name.toLowerCase())) {
-      messages.add("$description may not be a reserved word in Dart.\n"
-          "Using a valid Dart identifier makes the name usable in Dart code.");
+      messages.add(
+          "$description may not be a reserved word in Dart.\n"
+              "Using a valid Dart identifier makes the name usable in Dart code.");
     } else if (new RegExp(r"[A-Z]").hasMatch(name)) {
-      warnings.add('$description should be lower-case. Maybe use '
-          '"${_unCamelCase(name)}"?');
+      warnings.add(
+          '$description should be lower-case. Maybe use ' '"${_unCamelCase(name)}"?');
     }
   }
 
@@ -85,9 +122,9 @@ class NameValidator extends Validator {
     var lastMatchEnd = 0;
     for (var match in new RegExp(r"[a-z]([A-Z])").allMatches(source)) {
       builder
-        ..write(source.substring(lastMatchEnd, match.start + 1))
-        ..write("_")
-        ..write(match.group(1).toLowerCase());
+          ..write(source.substring(lastMatchEnd, match.start + 1))
+          ..write("_")
+          ..write(match.group(1).toLowerCase());
       lastMatchEnd = match.end;
     }
     builder.write(source.substring(lastMatchEnd));