Use ArgumentError.value in more places in js_lib.

sdk/lib/_internal/compiler/js_lib/core_patch.dart

Index: sdk/lib/_internal/compiler/js_lib/core_patch.dart
diff --git a/sdk/lib/_internal/compiler/js_lib/core_patch.dart b/sdk/lib/_internal/compiler/js_lib/core_patch.dart
index d42f9a854e1d7be99076861688d9a6eb6cab4d9f..7045e05f906283ba58a821eb47178164298de357 100644
--- a/sdk/lib/_internal/compiler/js_lib/core_patch.dart
+++ b/sdk/lib/_internal/compiler/js_lib/core_patch.dart
@@ -180,7 +180,9 @@ class DateTime {
                      bool isUtc)
         // checkBool is manually inlined here because dart2js doesn't inline it
         // and [isUtc] is usually a constant.
-      : this.isUtc = isUtc is bool ? isUtc : throw new ArgumentError(isUtc),
+      : this.isUtc = isUtc is bool
+            ? isUtc
+            : throw new ArgumentError.value(isUtc, 'isUtc'),
         millisecondsSinceEpoch = checkInt(Primitives.valueFromDecomposedDate(
             year, month, day, hour, minute, second, millisecond, isUtc));