dart2js-kernel: handle 'dynamic' as an expression

pkg/compiler/lib/src/ssa/builder_kernel.dart

Index: pkg/compiler/lib/src/ssa/builder_kernel.dart
diff --git a/pkg/compiler/lib/src/ssa/builder_kernel.dart b/pkg/compiler/lib/src/ssa/builder_kernel.dart
index 1ab19ec36e4760693a82839af6baf454e44bf46e..b0712ce25a864b9ead5efaa7fa144128cfd6fd53 100644
--- a/pkg/compiler/lib/src/ssa/builder_kernel.dart
+++ b/pkg/compiler/lib/src/ssa/builder_kernel.dart
@@ -1233,7 +1233,7 @@ class KernelSsaBuilder extends ir.Visitor with GraphBuilder {
   @override
   void visitTypeLiteral(ir.TypeLiteral typeLiteral) {
     ir.DartType type = typeLiteral.type;
-    if (type is ir.InterfaceType) {
+    if (type is ir.InterfaceType || type is ir.DynamicType) {
       ConstantValue constant = astAdapter.getConstantForType(type);
       stack.add(graph.addConstant(constant, closedWorld));
       return;
@@ -1251,7 +1251,7 @@ class KernelSsaBuilder extends ir.Visitor with GraphBuilder {
           astAdapter.createRuntimeTypeReturnType);
       return;
     }
-    // TODO(27394): 'dynamic' and function types observed. Where are they from?
+    // TODO(27394): Function types observed. Where are they from?
     defaultExpression(typeLiteral);
     return;
   }