Put a TypeProvider on the TypeSystem implementations.

pkg/analyzer/lib/src/summary/link.dart

 // Copyright (c) 2016, 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.
 
 /**
  * This library is capable of producing linked summaries from unlinked
  * ones (or prelinked ones).  It functions by building a miniature
  * element model to represent the contents of the summaries, and then
  * scanning the element model to gather linked information and adding
  * it to the summary data structures.
@@ skipping 2538 matching lines @@
         Map<String, DartType> namedParameterTypes =
             rawMethodType.namedParameterTypes;
         namedArgTypes.forEach((String name, DartType argType) {
           DartType parameterType = namedParameterTypes[name];
           if (parameterType != null) {
             paramTypes.add(parameterType);
             argTypes.add(argType);
           }
         });
         // Perform inference.
-        FunctionType inferred = ts.inferGenericFunctionCall(
-            typeProvider,
-            rawMethodType,
-            paramTypes,
-            argTypes,
-            rawMethodType.returnType,
-            null);
+        FunctionType inferred = ts.inferGenericFunctionCall(rawMethodType,
+            paramTypes, argTypes, rawMethodType.returnType, null);
         return inferred;
       }
     }
     // Not a generic function type, use the raw type.
     return rawMethodType;
   }
 
   DartType _leastUpperBound(DartType s, DartType t) {
-    return linker.typeSystem.getLeastUpperBound(typeProvider, s, t);
+    return linker.typeSystem.getLeastUpperBound(s, t);
   }
 
   List<DartType> _popList(int n) {
     List<DartType> result = stack.sublist(stack.length - n, stack.length);
     stack.length -= n;
     return result;
   }
 
   void _pushBinaryOperatorType(
       DartType left, TokenType operator, DartType right) {
     if (left is InterfaceType) {
       MethodElement method =
           left.lookUpInheritedMethod(operator.lexeme, library: library);
       if (method != null) {
         DartType type = method.returnType;
-        type = linker.typeSystem.refineBinaryExpressionType(
-            typeProvider, left, operator, right, type);
+        type = linker.typeSystem
+            .refineBinaryExpressionType(left, operator, right, type);
         stack.add(type);
         return;
       }
     }
     stack.add(DynamicTypeImpl.instance);
   }
 
   /**
    * Extract the property with the given [propertyName], apply the operator
    * with the given [operandType], push the type of applying operand of the
@@ skipping 1045 matching lines @@
 
   /**
    * Get an instance of [TypeProvider] for use during linking.
    */
   TypeProviderForLink get typeProvider =>
       _typeProvider ??= new TypeProviderForLink(this);
 
   /**
    * Get an instance of [TypeSystem] for use during linking.
    */
-  TypeSystem get typeSystem => _typeSystem ??=
-      strongMode ? new StrongTypeSystemImpl() : new TypeSystemImpl();
+  TypeSystem get typeSystem => _typeSystem ??= strongMode
+      ? new StrongTypeSystemImpl(typeProvider)
+      : new TypeSystemImpl(typeProvider);
 
   /**
    * Get the element representing `void`.
    */
   SpecialTypeElementForLink get voidElement => _voidElement ??=
       new SpecialTypeElementForLink(this, VoidTypeImpl.instance);
 
   /**
    * Get the library element for the library having the given [uri].
    */
@@ skipping 1284 matching lines @@
    * there are no type parameters in scope.
    */
   TypeParameterizedElementMixin get _typeParameterContext;
 
   @override
   noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
 
   @override
   String toString() => '$enclosingElement.$name';
 }