Virtual function calls of the for Foo::bar() are not linked to their override functions, but foo.bar() and foo->bar() are
Merge pull request #4248 from gartung/clangSA-better-virtual-linkage

Virtual function calls of the for Foo::bar() are not linked to their override
Merge remote branch 'origin/CMSSW_7_2_X' into CMSSW_7_0_X