ParamVarDecl should never be renamed to kConstantStyle.

tools/clang/rewrite_to_chrome_style/tests/constants-original.cc

Index: tools/clang/rewrite_to_chrome_style/tests/constants-original.cc
diff --git a/tools/clang/rewrite_to_chrome_style/tests/constants-original.cc b/tools/clang/rewrite_to_chrome_style/tests/constants-original.cc
index bc51bffa4edc1cdfea52773bc913930ebc3236db..51ce017823e0e59f29486e025347aa25c2154f8f 100644
--- a/tools/clang/rewrite_to_chrome_style/tests/constants-original.cc
+++ b/tools/clang/rewrite_to_chrome_style/tests/constants-original.cc
@@ -42,7 +42,8 @@ class C {
   }
 };
 
-void F() {
+// |constParam| should not be renamed to |kConstParam|.
+void F(const bool constParam = true) {
   // Constant in function body.
   static const char staticString[] = "abc";
   // Constant-style naming, since it's initialized with a literal.