CppTools: Fix indent after template params

Add case for ">>" token when in template_param state.

Task-number: QTCREATORBUG-9640
Change-Id: Icc5fc868202d6503d2afd954aa739cd2634cdff1
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

tests/auto/cplusplus/codeformatter/tst_codeformatter.cpp

@@ -1177,6 +1177,8 @@ void tst_CodeFormatter::templates()
          << Line("~           class F, class D>,")
          << Line("~       typename F>")
          << Line("class Foo { };")
+         << Line("template <class A = std::vector<int>>")
+         << Line("")
          ;
     checkIndent(data);
 }