Make dart:developer log more user friendly

sdk/lib/_internal/js_runtime/lib/developer_patch.dart

Index: sdk/lib/_internal/js_runtime/lib/developer_patch.dart
diff --git a/sdk/lib/_internal/js_runtime/lib/developer_patch.dart b/sdk/lib/_internal/js_runtime/lib/developer_patch.dart
index 8ec8d4380b611354f109d32478094708f3ad8cea..3098b0c886ef4cc7ad794c2af764cde34e0a3e9d 100644
--- a/sdk/lib/_internal/js_runtime/lib/developer_patch.dart
+++ b/sdk/lib/_internal/js_runtime/lib/developer_patch.dart
@@ -7,14 +7,6 @@
 import 'dart:_js_helper' show patch;
 import 'dart:_foreign_helper' show JS;
 
-/// If [when] is true, stop the program as if a breakpoint where hit at the
-/// following statement. Returns the value of [when]. Some debuggers may
-/// display [msg].
-/// NOTE: When invoked, the isolate will not return until a debugger
-/// continues execution. When running in the Dart VM the behaviour is the same
-/// regardless of whether or not a debugger is connected. When compiled to
-/// JavaScript, this uses the "debugger" statement, and behaves exactly as
-/// that does.
 @patch
 @ForceInline()
 bool debugger({bool when: true, String msg}) {
@@ -24,28 +16,17 @@ bool debugger({bool when: true, String msg}) {
   return when;
 }
 
-/// Send a reference to [object] to any attached debuggers so they may open an
-/// inspector on the object. Returns the argument.
 @patch
 inspect(object) {
   return object;
 }
 
 @patch
-/// Emit a log event.
-/// [sequenceNumber] is a monotonically increasing sequence number.
-/// [millisececondsSinceEpoch] is a timestamp.
-/// [level] is the severity level (value between 0 and 2000 inclusive).
-/// [name] is the name of the source of the log message.
-/// [message] is the log message.
-/// [zone] (optional) the zone where the log was emitted
-/// [error] (optional) an error object associated with this log event.
-/// [stackTrace] (optional) a stack trace associated with this log event.
-log({int sequenceNumber,
-     int millisecondsSinceEpoch,
-     int level,
-     String name,
-     String message,
+log(String message,
+    DateTime time,
+    {int sequenceNumber,
+     int level = 0,

[Lasse Reichstein Nielsen, 2015/08/04 11:24:54]

'=' should be ':' ?

(And yes, it IS annoying that you can't use '=' for named parameters).

[Cutch, 2015/08/04 14:11:40]

Done.

+     String name = '',
      Zone zone,
      Object error,
      StackTrace stackTrace}) {