Remove backend dependency from TypeTestRegistry

pkg/compiler/lib/src/js_backend/backend.dart

 // Copyright (c) 2012, 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.
 
 library js_backend.backend;
 
 import '../common.dart';
 import '../common/backend_api.dart'
     show ForeignResolver, NativeRegistry, ImpactTransformer;
 import '../common/codegen.dart' show CodegenImpact, CodegenWorkItem;
@@ skipping 349 matching lines @@
     result.add(emitter);
     result.add(patchResolverTask);
     result.add(kernelTask);
     return result;
   }
 
   final RuntimeTypesNeedBuilder _rtiNeedBuilder =
       new _RuntimeTypesNeedBuilder();
   RuntimeTypesNeed _rtiNeed;
   final _RuntimeTypes _rti;
-  RuntimeTypesChecks _rtiChecks;
 
   RuntimeTypesEncoder _rtiEncoder;
 
   /// True if the html library has been loaded.
   bool htmlLibraryIsLoaded = false;
 
   /// Resolution analysis for tracking reflective access to type variables.
   TypeVariableResolutionAnalysis _typeVariableResolutionAnalysis;
 
   /// Codegen handler for reflective access to type variables.
@@ skipping 250 matching lines @@
         message: "RuntimeTypesNeed has not been computed yet."));
     return _rtiNeed;
   }
 
   RuntimeTypesNeedBuilder get rtiNeedBuilder {
     assert(invariant(NO_LOCATION_SPANNABLE, _rtiNeed == null,
         message: "RuntimeTypesNeed has already been computed."));
     return _rtiNeedBuilder;
   }
 
-  RuntimeTypesChecks get rtiChecks {
-    assert(invariant(NO_LOCATION_SPANNABLE, _rtiChecks != null,
-        message: "RuntimeTypesChecks has not been computed yet."));
-    return _rtiChecks;
-  }
-
   RuntimeTypesChecksBuilder get rtiChecksBuilder {
-    assert(invariant(NO_LOCATION_SPANNABLE, _rtiChecks == null,
+    assert(invariant(NO_LOCATION_SPANNABLE, !_rti.rtiChecksBuilderClosed,
         message: "RuntimeTypesChecks has already been computed."));
     return _rti;
   }
 
   RuntimeTypesSubstitutions get rtiSubstitutions => _rti;
 
   RuntimeTypesEncoder get rtiEncoder {
     assert(invariant(NO_LOCATION_SPANNABLE, _rtiEncoder != null,
         message: "RuntimeTypesEncoder has not been created."));
     return _rtiEncoder;
@@ skipping 369 matching lines @@
   /**
    * Unit test hook that returns code of an element as a String.
    *
    * Invariant: [element] must be a declaration element.
    */
   String getGeneratedCode(Element element) {
     assert(invariant(element, element.isDeclaration));
     return jsAst.prettyPrint(generatedCode[element], compiler.options);
   }
 
-  /// Called to finalize the [RuntimeTypesChecks] information.
-  void finalizeRti() {
-    _rtiChecks = rtiChecksBuilder.computeRequiredChecks();
-  }
-
   /// Generates the output and returns the total size of the generated code.
   int assembleProgram(ClosedWorld closedWorld) {
     int programSize = emitter.assembleProgram(namer, closedWorld);
     noSuchMethodRegistry.emitDiagnostic(reporter);
     int totalMethodCount = generatedCode.length;
     if (totalMethodCount != mirrorsCodegenAnalysis.preMirrorsMethodCount) {
       int mirrorCount =
           totalMethodCount - mirrorsCodegenAnalysis.preMirrorsMethodCount;
       double percentage = (mirrorCount / totalMethodCount) * 100;
       DiagnosticMessage hint =
@@ skipping 432 matching lines @@
 
   bool canUseAliasedSuperMember(MemberEntity member, Selector selector) {
     return !selector.isGetter;
   }
 
   /// Returns `true` if [member] is called from a subclass via `super`.
   bool isAliasedSuperMember(MemberEntity member) {
     return _aliasedSuperMembers.contains(member);
   }
 }