Temporarily fix false symbol ambiguity problem
Temporarily fix false symbol ambiguity problem

Solves the problem when a single assembly is represented by multiple
AssemblySymbol instances. If we stop creating such instances in the
first place, we can remove this fix.

iolevel/peachpie-concept,peachpiecompiler/peachpie,iolevel/peachpie,iolevel/peachpie,iolevel/peachpie,iolevel/peachpie-concept,peachpiecompiler/peachpie,iolevel/peachpie-concept,peachpiecompiler/peachpie