Cleanup how we query for interceptors.

sdk/lib/_internal/compiler/implementation/ssa/optimize.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.
 
 part of ssa;
 
 abstract class OptimizationPhase {
   String get name;
   void visitGraph(HGraph graph);
 }
@@ skipping 636 matching lines @@
   }
 }
 
 class SsaCheckInserter extends HBaseVisitor implements OptimizationPhase {
   final HTypeMap types;
   final ConstantSystem constantSystem;
   final Set<HInstruction> boundsChecked;
   final String name = "SsaCheckInserter";
   HGraph graph;
   Element lengthInterceptor;
+  Selector lengthSelector;
 
   SsaCheckInserter(JavaScriptBackend backend, this.types, this.boundsChecked)
       : constantSystem = backend.constantSystem {
     SourceString lengthString = const SourceString('length');
+    lengthSelector = new Selector.getter(
+        lengthString,
+        backend.compiler.currentElement.getLibrary());
     lengthInterceptor =
-        backend.builder.interceptors.getStaticGetInterceptor(lengthString);
+        backend.builder.interceptors.getStaticInterceptor(lengthSelector);
   }
 
   void visitGraph(HGraph graph) {
     this.graph = graph;
     visitDominatorTree(graph);
   }
 
   void visitBasicBlock(HBasicBlock block) {
     HInstruction instruction = block.first;
     while (instruction != null) {
       HInstruction next = instruction.next;
       instruction = instruction.accept(this);
       instruction = next;
     }
   }
 
   HBoundsCheck insertBoundsCheck(HInstruction node,
                                  HInstruction receiver,
                                  HInstruction index) {
     HStatic interceptor = new HStatic(lengthInterceptor);
     node.block.addBefore(node, interceptor);
-    Selector selector = new Selector.getter(
-        const SourceString('length'),
-        lengthInterceptor.getLibrary());  // TODO(kasperl): Wrong.
     HInvokeInterceptor length = new HInvokeInterceptor(
-        selector, <HInstruction>[interceptor, receiver], true);
+        lengthSelector, <HInstruction>[interceptor, receiver], true);
     types[length] = HType.INTEGER;
     node.block.addBefore(node, length);
 
     HBoundsCheck check = new HBoundsCheck(index, length);
     node.block.addBefore(node, check);
     boundsChecked.add(node);
     return check;
   }
 
   HIntegerCheck insertIntegerCheck(HInstruction node, HInstruction value) {
@@ skipping 651 matching lines @@
     }
 
     // For other fields having setters in the generative constructor body, set
     // the type to UNKNOWN to avoid relying on the type set in the initializer
     // list.
     allSetters.forEach((Element element) {
       backend.registerFieldConstructor(element, HType.UNKNOWN);
     });
   }
 }