Allow multiple resolutions of cc into the same EL expression

See MYFACES-2651.
In particular, there is still a case in which the proposed solution won't work.
Consider the component test 1 slightly modified:

<cc:interface name="test1">
<cc:attribute name="test" required="true" />
</cc:interface>
<cc:implementation>
test1
<t2:test2 test="#

{myLibrary:myFunction(...) or cc.attrs.test}

" />
</cc:implementation>

In that case the regex expression looking for cc.attrs will exclude the expression because cc.attrs is preceded by a left parenthesis (as stated in CompositeComponentELUtils).

Changing to
<t2:test2 test="#

{cc.attrs.test or myLibrary:myFunction(...)}

" />
will work.