Define Flag operators for YGPrintOptions (#37115)

Summary:
Pull Request resolved: #37115

X-link: facebook/yoga#1267

This is an existing bitset enum in the API. Use the facility added in the last diff to add flag operators to it, to avoid the need for casting, and to make it clearer in the generated YGEnums.h that it is a bitset.

Differential Revision: D45341504

fbshipit-source-id: 62a3e75b18b667c0cd30d19fe2088ddfd4f68c6e

packages/react-native/ReactCommon/yoga/yoga/YGEnums.h

@@ -127,6 +127,7 @@ YG_ENUM_DECL(
     YGPrintOptionsLayout = 1,
     YGPrintOptionsStyle = 2,
     YGPrintOptionsChildren = 4)
+YG_DEFINE_ENUM_FLAG_OPERATORS(YGPrintOptions)
 
 YG_ENUM_SEQ_DECL(
     YGUnit,