Declaration shadowing warnings from clang

[asmaloney]

With the latest Apple clang version 11.0.0 (clang-1100.0.33.8), I'm getting three warnings about shadowed variables:

In file included from 3rdParty/include/yaml-cpp/yaml.h:12:
3rdParty/include/yaml-cpp/emitterstyle.h:12:25: warning: declaration shadows a variable in namespace 'YAML' [-Wshadow]
  enum value { Default, Block, Flow };
                        ^
3rdParty/include/yaml-cpp/emittermanip.h:52:3: note: previous declaration is here
  Block,
  ^
In file included from 3rdParty/include/yaml-cpp/yaml.h:12:
3rdParty/include/yaml-cpp/emitterstyle.h:12:32: warning: declaration shadows a variable in namespace 'YAML' [-Wshadow]
  enum value { Default, Block, Flow };
                               ^
3rdParty/include/yaml-cpp/emittermanip.h:51:3: note: previous declaration is here
  Flow,
  ^
In file included from 3rdParty/include/yaml-cpp/yaml.h:16:
In file included from 3rdParty/include/yaml-cpp/node/node.h:18:
3rdParty/include/yaml-cpp/node/type.h:12:27: warning: declaration shadows a variable in namespace 'YAML' [-Wshadow]
  enum value { Undefined, Null, Scalar, Sequence, Map };
                          ^
3rdParty/include/yaml-cpp/null.h:23:27: note: previous declaration is here
extern YAML_CPP_API _Null Null;
                          ^
3 warnings generated.

[jbeder]

I'm not super concerned about that kind of shadowing. In any case, it's part of the public API and I don't think I want to change it for the sake of avoiding a shadowing problem that's unlikely to arise. Thanks for the report, though!

[mateusz-plociennik]

Related: Fix plenty of clang warnings declaration shadows a variable: using class enum instead of enum