Deprecate all diagnostics methods that use strings.

pkg/front_end/lib/src/fasta/kernel/kernel_named_type_builder.dart

Index: pkg/front_end/lib/src/fasta/kernel/kernel_named_type_builder.dart
diff --git a/pkg/front_end/lib/src/fasta/kernel/kernel_named_type_builder.dart b/pkg/front_end/lib/src/fasta/kernel/kernel_named_type_builder.dart
index 873c3246a15e433f7712c50e29408bcf2dc7f7a3..6bdf5529e24715ef431f791fe51db037d7f0f4e3 100644
--- a/pkg/front_end/lib/src/fasta/kernel/kernel_named_type_builder.dart
+++ b/pkg/front_end/lib/src/fasta/kernel/kernel_named_type_builder.dart
@@ -6,7 +6,7 @@ library fasta.kernel_interface_type_builder;
 
 import 'package:kernel/ast.dart' show DartType, DynamicType, Supertype;
 
-import '../messages.dart' show warning;
+import '../messages.dart' show deprecated_warning;
 
 import 'kernel_builder.dart'
     show
@@ -27,18 +27,18 @@ class KernelNamedTypeBuilder
 
   KernelInvalidTypeBuilder buildInvalidType(String name) {
     // TODO(ahe): Record error instead of printing.
-    warning(fileUri, charOffset, "Type not found: '$name'.");
+    deprecated_warning(fileUri, charOffset, "Type not found: '$name'.");
     return new KernelInvalidTypeBuilder(name, charOffset, fileUri);
   }
 
   DartType handleMissingType() {
     // TODO(ahe): Record error instead of printing.
-    warning(fileUri, charOffset, "No type for: '$name'.");
+    deprecated_warning(fileUri, charOffset, "No type for: '$name'.");
     return const DynamicType();
   }
 
   Supertype handleMissingSupertype() {
-    warning(fileUri, charOffset, "No type for: '$name'.");
+    deprecated_warning(fileUri, charOffset, "No type for: '$name'.");
     return null;
   }
 
@@ -46,7 +46,8 @@ class KernelNamedTypeBuilder
     String message = builder.isTypeVariable
         ? "The type variable '$name' can't be used as supertype."
         : "The type '$name' can't be used as supertype.";
-    library.addCompileTimeError(charOffset, message, fileUri: fileUri);
+    library.deprecated_addCompileTimeError(charOffset, message,
+        fileUri: fileUri);
     return null;
   }