Put a TypeProvider on the TypeSystem implementations.

pkg/dev_compiler/lib/src/compiler/code_generator.dart

Index: pkg/dev_compiler/lib/src/compiler/code_generator.dart
diff --git a/pkg/dev_compiler/lib/src/compiler/code_generator.dart b/pkg/dev_compiler/lib/src/compiler/code_generator.dart
index 46ddce3a113ef5075e19c3fb9df4dd2221d2b645..d4069072afdc15a04bf9e717848d7a34c0434d1a 100644
--- a/pkg/dev_compiler/lib/src/compiler/code_generator.dart
+++ b/pkg/dev_compiler/lib/src/compiler/code_generator.dart
@@ -60,7 +60,7 @@ class CodeGenerator extends GeneralizingAstVisitor
   final SummaryDataStore summaryData;
 
   final CompilerOptions options;
-  final rules = new StrongTypeSystemImpl();
+  final StrongTypeSystemImpl rules;
 
   /// The set of libraries we are currently compiling, and the temporaries used
   /// to refer to them.
@@ -159,6 +159,7 @@ class CodeGenerator extends GeneralizingAstVisitor
   CodeGenerator(
       AnalysisContext c, this.summaryData, this.options, this._extensionTypes)
       : context = c,
+        rules = new StrongTypeSystemImpl(c.typeProvider),
         types = c.typeProvider,
         _asyncStreamIterator =
             _getLibrary(c, 'dart:async').getType('StreamIterator').type,