IE browser compat for CanvasPixelArray and HTMLPhraseElement

lib/compiler/implementation/lib/native_helper.dart

Index: lib/compiler/implementation/lib/native_helper.dart
diff --git a/lib/compiler/implementation/lib/native_helper.dart b/lib/compiler/implementation/lib/native_helper.dart
index c2181c951f907ee47a003e629eb1ed98580602ab..6b32e78120bfd8604871344a158893053ede3c60 100644
--- a/lib/compiler/implementation/lib/native_helper.dart
+++ b/lib/compiler/implementation/lib/native_helper.dart
@@ -30,6 +30,8 @@ String typeNameInIE(obj) {
   if (name == 'HTMLTableDataCellElement') return 'HTMLTableCellElement';
   if (name == 'HTMLTableHeaderCellElement') return 'HTMLTableCellElement';
   if (name == 'MSStyleCSSProperties') return 'CSSStyleDeclaration';
+  if (name == 'CanvasPixelArray') return 'Uint8ClampedArray';
+  if (name == 'HTMLPhraseElement') return 'HTMLElement';
   return name;
 }