Use entities in native_emitter.dart

pkg/compiler/lib/src/ssa/builder.dart

Index: pkg/compiler/lib/src/ssa/builder.dart
diff --git a/pkg/compiler/lib/src/ssa/builder.dart b/pkg/compiler/lib/src/ssa/builder.dart
index ce4ad45ac2ac8d5ab5b6aca675b7993bf1c4d50c..ff152319f8de407862507eb536109543e3aa0887 100644
--- a/pkg/compiler/lib/src/ssa/builder.dart
+++ b/pkg/compiler/lib/src/ssa/builder.dart
@@ -4008,7 +4008,7 @@ class SsaBuilder extends ast.Visitor
     }
   }
 
-  HForeignCode invokeJsInteropFunction(FunctionElement element,
+  HForeignCode invokeJsInteropFunction(MethodElement element,
       List<HInstruction> arguments, SourceInformation sourceInformation) {
     assert(backend.isJsInterop(element));
     nativeEmitter.nativeMethods.add(element);
@@ -4051,7 +4051,7 @@ class SsaBuilder extends ast.Visitor
         ..sourceInformation = sourceInformation;
     }
     var target = new HForeignCode(
-        js.js.parseForeignJS("${backend.namer.fixedBackendPath(element)}."
+        js.js.parseForeignJS("${backend.namer.fixedBackendMethodPath(element)}."
             "${backend.nativeData.getFixedBackendName(element)}"),
         commonMasks.dynamicType,
         <HInstruction>[]);