rewrite_to_chrome_style: skip nodes in synthesized functions.

tools/clang/rewrite_to_chrome_style/tests/fields-expected.cc

Index: tools/clang/rewrite_to_chrome_style/tests/fields-expected.cc
diff --git a/tools/clang/rewrite_to_chrome_style/tests/fields-expected.cc b/tools/clang/rewrite_to_chrome_style/tests/fields-expected.cc
index 6bccd9b5c33a2d7c12fe8a1d1ccf6086fc3fcfef..6e789f6d37a46212bdff0e321bca7c01ed53ef1e 100644
--- a/tools/clang/rewrite_to_chrome_style/tests/fields-expected.cc
+++ b/tools/clang/rewrite_to_chrome_style/tests/fields-expected.cc
@@ -50,4 +50,8 @@ union U {
 void F() {
   // Test that references to a static field are correctly rewritten.
   blink::C::instance_count_++;
+  // Force instantiation of a copy constructor for blink::C to make sure field
+  // initializers for synthesized functions don't cause weird rewrites.
+  blink::C c;
+  blink::C c2 = c;
 }