Support constructor invocation in analyzer2dart.

pkg/analyzer2dart/lib/src/tree_shaker.dart

Index: pkg/analyzer2dart/lib/src/tree_shaker.dart
diff --git a/pkg/analyzer2dart/lib/src/tree_shaker.dart b/pkg/analyzer2dart/lib/src/tree_shaker.dart
index ba24c4cd2a39c105af966f8c4fcdc8e92c2d29b5..11a7c3ee075c6a17a53d812362997727848a0aea 100644
--- a/pkg/analyzer2dart/lib/src/tree_shaker.dart
+++ b/pkg/analyzer2dart/lib/src/tree_shaker.dart
@@ -261,8 +261,8 @@ class TreeShakingVisitor extends SemanticVisitor {
   @override
   void visitDynamicInvocation(MethodInvocation node,
       AccessSemantics semantics) {
-    analysis.invokes.add(
-        createSelectorFromMethodInvocation(node, node.methodName.name));
+    analysis.invokes.add(createSelectorFromMethodInvocation(
+        node.argumentList, node.methodName.name));
   }
 
   @override
@@ -288,7 +288,8 @@ class TreeShakingVisitor extends SemanticVisitor {
       AccessSemantics semantics) {
     // Invocation of a static field.
     analysis.accesses.add(semantics.element);
-    analysis.invokes.add(createSelectorFromMethodInvocation(node, 'call'));
+    analysis.invokes.add(createSelectorFromMethodInvocation(
+        node.argumentList, 'call'));
   }
 
   void visitStaticMethodInvocation(MethodInvocation node,