Support is tests

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

Index: pkg/compiler/lib/src/ssa/builder_kernel.dart
diff --git a/pkg/compiler/lib/src/ssa/builder_kernel.dart b/pkg/compiler/lib/src/ssa/builder_kernel.dart
index ed34fdb587504032cd2316ee2944579e8a1a6255..383276378fa7dccd62be7239094d34665964a70a 100644
--- a/pkg/compiler/lib/src/ssa/builder_kernel.dart
+++ b/pkg/compiler/lib/src/ssa/builder_kernel.dart
@@ -117,7 +117,7 @@ class KernelSsaGraphBuilder extends ir.Visitor
       this.sourceInformationBuilder,
       this.functionNode) {
     this.loopHandler = new KernelLoopHandler(this);
-    typeBuilder = new TypeBuilder(this);
+    typeBuilder = new KernelTypeBuilder(_elementMap, this);
     graph.element = targetElement;
     graph.sourceInformation =
         sourceInformationBuilder.buildVariableDeclaration();
@@ -3502,3 +3502,14 @@ class TryCatchFinallyBuilder {
     kernelBuilder.inTryStatement = previouslyInTryStatement;
   }
 }
+
+class KernelTypeBuilder extends TypeBuilder {
+  KernelToElementMapForBuilding _elementMap;
+
+  KernelTypeBuilder(this._elementMap, GraphBuilder builder) : super(builder);
+
+  @override
+  InterfaceType getThisType(ClassEntity cls) {
+    return _elementMap.elementEnvironment.getThisType(cls);
+  }
+}