Revert "Add support for the new function-type syntax."

pkg/compiler/lib/src/kernel/kernel_visitor.dart

Index: pkg/compiler/lib/src/kernel/kernel_visitor.dart
diff --git a/pkg/compiler/lib/src/kernel/kernel_visitor.dart b/pkg/compiler/lib/src/kernel/kernel_visitor.dart
index 6a663b01c4cc12299b6c335c7879e15d7f3c73ce..da51f989db9e3c7e1fc07491de9b8dff4734e433 100644
--- a/pkg/compiler/lib/src/kernel/kernel_visitor.dart
+++ b/pkg/compiler/lib/src/kernel/kernel_visitor.dart
@@ -104,7 +104,6 @@ import '../tree/tree.dart'
         ForIn,
         FunctionDeclaration,
         FunctionExpression,
-        FunctionTypeAnnotation,
         Identifier,
         If,
         Label,
@@ -123,7 +122,6 @@ import '../tree/tree.dart'
         NewExpression,
         Node,
         NodeList,
-        NominalTypeAnnotation,
         Operator,
         ParenthesizedExpression,
         RedirectingFactoryBody,
@@ -1089,28 +1087,14 @@ class KernelVisitor extends Object
 
   @override
   visitTypeAnnotation(TypeAnnotation node) {
-    // Shouldn't be called, as the resolver has already resolved types and
+    // Shouldn't be called, as the resolver have already resolved types and
     // created [DartType] objects.
     return internalError(node, "TypeAnnotation");
   }
 
   @override
-  visitNominalTypeAnnotation(NominalTypeAnnotation node) {
-    // Shouldn't be called, as the resolver has already resolved types and
-    // created [DartType] objects.
-    return internalError(node, "NominalTypeAnnotation");
-  }
-
-  @override
-  visitFunctionTypeAnnotation(FunctionTypeAnnotation node) {
-    // Shouldn't be called, as the resolver has already resolved types and
-    // created [DartType] objects.
-    return internalError(node, "FunctionTypeAnnotation");
-  }
-
-  @override
   visitTypeVariable(TypeVariable node) {
-    // Shouldn't be called, as the resolver has already resolved types and
+    // Shouldn't be called, as the resolver have already resolved types and
     // created [DartType] objects.
     return internalError(node, "TypeVariable");
   }