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

sdk/lib/_internal/pub_generated/lib/src/log.dart

Index: sdk/lib/_internal/pub_generated/lib/src/log.dart
diff --git a/sdk/lib/_internal/pub/lib/src/log.dart b/sdk/lib/_internal/pub_generated/lib/src/log.dart
similarity index 92%
copy from sdk/lib/_internal/pub/lib/src/log.dart
copy to sdk/lib/_internal/pub_generated/lib/src/log.dart
index 0b14ab30eb0b2050557c973e18d2ddb75903856c..ecf67ed2c053d6efaef65453f59b8f001ae70a01 100644
--- a/sdk/lib/_internal/pub/lib/src/log.dart
+++ b/sdk/lib/_internal/pub_generated/lib/src/log.dart
@@ -103,62 +103,62 @@ typedef _LogFn(Entry entry);
 class Verbosity {
   /// Silence all logging.
   static const NONE = const Verbosity._("none", const {
-    Level.ERROR:   null,
+    Level.ERROR: null,
     Level.WARNING: null,
     Level.MESSAGE: null,
-    Level.IO:      null,
-    Level.SOLVER:  null,
-    Level.FINE:    null
+    Level.IO: null,
+    Level.SOLVER: null,
+    Level.FINE: null
   });
 
   /// Shows only errors and warnings.
   static const WARNING = const Verbosity._("warning", const {
-    Level.ERROR:   _logToStderr,
+    Level.ERROR: _logToStderr,
     Level.WARNING: _logToStderr,
     Level.MESSAGE: null,
-    Level.IO:      null,
-    Level.SOLVER:  null,
-    Level.FINE:    null
+    Level.IO: null,
+    Level.SOLVER: null,
+    Level.FINE: null
   });
 
   /// The default verbosity which shows errors, warnings, and messages.
   static const NORMAL = const Verbosity._("normal", const {
-    Level.ERROR:   _logToStderr,
+    Level.ERROR: _logToStderr,
     Level.WARNING: _logToStderr,
     Level.MESSAGE: _logToStdout,
-    Level.IO:      null,
-    Level.SOLVER:  null,
-    Level.FINE:    null
+    Level.IO: null,
+    Level.SOLVER: null,
+    Level.FINE: null
   });
 
   /// Shows errors, warnings, messages, and IO event logs.
   static const IO = const Verbosity._("io", const {
-    Level.ERROR:   _logToStderrWithLabel,
+    Level.ERROR: _logToStderrWithLabel,
     Level.WARNING: _logToStderrWithLabel,
     Level.MESSAGE: _logToStdoutWithLabel,
-    Level.IO:      _logToStderrWithLabel,
-    Level.SOLVER:  null,
-    Level.FINE:    null
+    Level.IO: _logToStderrWithLabel,
+    Level.SOLVER: null,
+    Level.FINE: null
   });
 
   /// Shows errors, warnings, messages, and version solver logs.
   static const SOLVER = const Verbosity._("solver", const {
-    Level.ERROR:   _logToStderr,
+    Level.ERROR: _logToStderr,
     Level.WARNING: _logToStderr,
     Level.MESSAGE: _logToStdout,
-    Level.IO:      null,
-    Level.SOLVER:  _logToStdout,
-    Level.FINE:    null
+    Level.IO: null,
+    Level.SOLVER: _logToStdout,
+    Level.FINE: null
   });
 
   /// Shows all logs.
   static const ALL = const Verbosity._("all", const {
-    Level.ERROR:   _logToStderrWithLabel,
+    Level.ERROR: _logToStderrWithLabel,
     Level.WARNING: _logToStderrWithLabel,
     Level.MESSAGE: _logToStdoutWithLabel,
-    Level.IO:      _logToStderrWithLabel,
-    Level.SOLVER:  _logToStderrWithLabel,
-    Level.FINE:    _logToStderrWithLabel
+    Level.IO: _logToStderrWithLabel,
+    Level.SOLVER: _logToStderrWithLabel,
+    Level.FINE: _logToStderrWithLabel
   });
 
   const Verbosity._(this.name, this._loggers);
@@ -234,7 +234,8 @@ String format(String string) {
 
   // [toUpperCase] can corrupt terminal colorings, so fix them up using
   // [replaceAllMapped].
-  string = string.toUpperCase().replaceAllMapped(_capitalizedAnsiEscape,
+  string = string.toUpperCase().replaceAllMapped(
+      _capitalizedAnsiEscape,
       (match) => match[0].toLowerCase());
 
   // Don't use [bold] because it's disabled under [withPrejudice].
@@ -249,8 +250,8 @@ String format(String string) {
 ///
 /// If [endMessage] is omitted, then logs "Begin [startMessage]" before the
 /// operation and "End [startMessage]" after it.
-Future ioAsync(String startMessage, Future operation,
-               [String endMessage(value)]) {
+Future ioAsync(String startMessage, Future operation, [String
+    endMessage(value)]) {
   if (endMessage == null) {
     io("Begin $startMessage.");
   } else {
@@ -269,10 +270,11 @@ Future ioAsync(String startMessage, Future operation,
 
 /// Logs the spawning of an [executable] process with [arguments] at [IO]
 /// level.
-void process(String executable, List<String> arguments,
-    String workingDirectory) {
-  io("Spawning \"$executable ${arguments.join(' ')}\" in "
-      "${p.absolute(workingDirectory)}");
+void process(String executable, List<String> arguments, String workingDirectory)
+    {
+  io(
+      "Spawning \"$executable ${arguments.join(' ')}\" in "
+          "${p.absolute(workingDirectory)}");
 }
 
 /// Logs the results of running [executable].
@@ -289,8 +291,8 @@ void processResult(String executable, PubProcessResult result) {
       var numLines = 0;
       for (var line in output) {
         if (++numLines > 1000) {
-          buffer.writeln('[${output.length - 1000}] more lines of output '
-              'truncated...]');
+          buffer.writeln(
+              '[${output.length - 1000}] more lines of output ' 'truncated...]');
           break;
         }
 
@@ -519,7 +521,9 @@ class _JsonLogger {
   ///
   /// Always prints to stdout.
   void error(error, [stackTrace]) {
-    var errorJson = {"error": error.toString()};
+    var errorJson = {
+      "error": error.toString()
+    };
 
     if (stackTrace == null && error is Error) stackTrace = error.stackTrace;
     if (stackTrace != null) {