Run tests in checked mode, and fixed a type error

Author: asgerf

lib/src/annotations.dart

@@ -80,9 +80,10 @@ class Resolver extends RecursiveVisitor {
     return node;
   }
 
-  Scope findScope(Name node) {
-    String name = node.value;
-    Node parent = node.parent;
+  Scope findScope(Name nameNode) {
+    String name = nameNode.value;
+    Node parent = nameNode.parent;
+    Node node = nameNode;
     if (parent is FunctionNode && parent.name == node && !parent.isExpression) {
       node = parent.parent;
     }

test/runtest

@@ -36,7 +36,7 @@ do
 	path=$(python -c "import os.path; print os.path.relpath('$file', '$BASEDIR')")
 	printf "%-50s" $path
 
-	if dart parser_test.dart --json $file > tmp/mine.json 2> tmp/$name.err; then
+	if dart --checked parser_test.dart --json $file > tmp/mine.json 2> tmp/$name.err; then
 		rm -f tmp/$name.err
 	else
 		echo "[EXCEPTION]"