Deprecate all diagnostics methods that use strings.

pkg/analyzer/tool/summary/mini_ast.dart

 // Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-import 'package:front_end/src/fasta/errors.dart' show internalError;
+import 'package:front_end/src/fasta/deprecated_problems.dart'
+    show deprecated_internalProblem;
 import 'package:front_end/src/fasta/fasta_codes.dart' show FastaMessage;
 import 'package:front_end/src/fasta/parser/identifier_context.dart';
 import 'package:front_end/src/fasta/parser/parser.dart';
 import 'package:front_end/src/fasta/source/stack_listener.dart';
 import 'package:front_end/src/scanner/token.dart';
 
 /// "Mini AST" representation of a declaration which can accept annotations.
 class AnnotatedNode {
   final Comment documentationComment;
 
@@ skipping 134 matching lines @@
 class MiniAstBuilder extends StackListener {
   bool inMetadata = false;
 
   final compilationUnit = new CompilationUnit();
 
   @override
   Uri get uri => null;
 
   @override
   void addCompileTimeErrorFromMessage(FastaMessage message) {
-    internalError(message.message);
+    deprecated_internalProblem(message.message);
   }
 
   @override
   void beginMetadata(Token token) {
     inMetadata = true;
   }
 
   @override
   void beginMetadataStar(Token token) {
     debugEvent("beginMetadataStar");
@@ skipping 36 matching lines @@
 
   @override
   void endCombinators(int count) {
     debugEvent("Combinators");
   }
 
   @override
   void endConditionalUris(int count) {
     debugEvent("ConditionalUris");
     if (count != 0) {
-      internalError('Conditional URIs are not supported by summary codegen');
+      deprecated_internalProblem(
+          'Conditional URIs are not supported by summary codegen');
     }
   }
 
   @override
   void endConstructorReference(
       Token start, Token periodBeforeName, Token endToken) {
     debugEvent("ConstructorReference");
     String constructorName = popIfNotNull(periodBeforeName);
     pop(); // Type arguments
     String name = pop();
@@ skipping 242 matching lines @@
   final String name;
 
   final List<TypeName> typeArguments;
 
   TypeName(this.name, this.typeArguments);
 }
 
 /// "Mini AST" representation of an expression which summary code generation
 /// need not be concerned about.
 class UnknownExpression extends Expression {}