Fix #2178: Unparseable C++ cross-reference when referencing a function with :cpp:any:

tests/roots/test-domain-cpp/any-role.rst

@@ -0,0 +1,10 @@
+any role
+--------
+
+* :cpp:any:`Sphinx`
+* ref function without parens :cpp:any:`hello`.
+* ref function with parens :cpp:any:`hello()`.
+* :cpp:any:`Sphinx::version`
+* :cpp:any:`version`
+* :cpp:any:`List`
+* :cpp:any:`MyEnum`

tests/roots/test-domain-cpp/conf.py

@@ -0,0 +1,4 @@
+# -*- coding: utf-8 -*-
+
+master_doc = 'index'
+html_theme = 'classic'

tests/roots/test-domain-cpp/index.rst

@@ -0,0 +1,37 @@
+test-domain-cpp
+===============
+
+directives
+----------
+
+.. cpp:class:: public Sphinx
+
+   The description of Sphinx class.
+
+.. cpp:function:: int hello(char *name)
+
+   The description of hello function.
+
+.. cpp:member:: float Sphinx::version
+
+   The description of Sphinx::version.
+
+.. cpp:var:: int version
+
+   The description of version.
+
+.. cpp:type:: std::vector<int> List
+
+   The description of List type.
+
+.. cpp:enum:: MyEnum
+
+   An unscoped enum.
+
+.. cpp:enum-class:: MyScopedEnum
+
+   A scoped enum.
+
+.. cpp:enum-struct:: protected MyScopedVisibilityEnum : std::underlying_type<MySpecificEnum>::type
+
+   A scoped enum with non-default visibility, and with a specified underlying type.

tests/roots/test-domain-cpp/roles.rst

@@ -0,0 +1,10 @@
+roles
+-----
+
+* :cpp:class:`Sphinx`
+* ref function without parens :cpp:func:`hello`.
+* ref function with parens :cpp:func:`hello()`.
+* :cpp:member:`Sphinx::version`
+* :cpp:var:`version`
+* :cpp:type:`List`
+* :cpp:enum:`MyEnum`