Fixed wrong dependent checking for some types causing mangler crash.

Consider the following sample code:

template <typename T>
class MyClass
{
    int i;
};

Even though `i` is not a dependent type itself it needs to be considered as dependent for name mangling purposes.

Fixes a boost parser crasher.

src/CppParser/Parser.cpp

@@ -330,7 +330,10 @@ std::string Parser::GetDeclMangledName(clang::Decl* D, clang::TargetCXXABI ABI,
     llvm::raw_string_ostream Out(Mangled);
 
     if (const ValueDecl *VD = dyn_cast<ValueDecl>(ND))
-        IsDependent = VD->getType()->isDependentType();
+        IsDependent |= VD->getType()->isDependentType();
+
+    if (!IsDependent)
+        IsDependent |= ND->getDeclContext()->isDependentContext();
 
     if (!MC->shouldMangleDeclName(ND) || IsDependent)
         return ND->getDeclName().getAsString();