Pass context class directly to KernelSsaBuilder

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 cd8bbc4b89bccc1578d716ac976325a137827f04..0abf07d050c71267ed6a5b316af45d5bc68c828f 100644
--- a/pkg/compiler/lib/src/ssa/builder_kernel.dart
+++ b/pkg/compiler/lib/src/ssa/builder_kernel.dart
@@ -96,6 +96,7 @@ class KernelSsaBuilder extends ir.Visitor with GraphBuilder {
 
   KernelSsaBuilder(
       this.targetElement,
+      ClassEntity contextClass,
       this.compiler,
       this._elementMap,
       this.closedWorld,
@@ -109,7 +110,7 @@ class KernelSsaBuilder extends ir.Visitor with GraphBuilder {
     graph.sourceInformation =
         sourceInformationBuilder.buildVariableDeclaration();
     this.localsHandler = new LocalsHandler(this, targetElement, targetElement,
-        targetElement.enclosingClass, null, nativeData, interceptorData);
+        contextClass, null, nativeData, interceptorData);
     target = astAdapter.getInitialKernelNode(targetElement);
     if (targetElement is ConstructorBodyElement) {
       _targetIsConstructorBody = true;