Disable Wambiguous-member-template.
Disable Wambiguous-member-template.

In CallFunc we currently always (intentionally and somewhat necessarily)
always fully specify member function template, however this can lead to
an ambiguity with a class template.  For example in
roottest/cling/functionTemplate we get:

  input_line_171:3:15: warning: lookup of 'set' in member access expression is ambiguous; using member of 't'
        ((t*)obj)->set<int>(*(int*)args[0]);
                   ^
  /local2/pcanal/cint_working/rootcling/root/roottest/cling/functionTemplate/t.h:19:9: note: lookup in the object type 't' refers here
        void set(T targ) {
             ^
  /usr/lib/gcc/x86_64-redhat-linux/4.4.5/../../../../include/c++/4.4.5/bits/stl_set.h:87:11: note: lookup from the current scope refers here
         class set
               ^
  This is an intention warning implemented in clang, see
  http://llvm.org/viewvc/llvm-project?view=revision&revision=105518

This fixes a failure in pythoncintrun in roottest/cling/functionTemplate.

karies/cling,perovic/cling,root-mirror/cling,perovic/cling,marsupial/cling,marsupial/cling,root-mirror/cling,marsupial/cling,marsupial/cling,root-mirror/cling,perovic/cling,root-mirror/cling,root-mirror/cling,karies/cling,perovic/cling,marsupial/cling,karies/cling,marsupial/cling,root-mirror/cling,karies/cling,perovic/cling,karies/cling,karies/cling