Method getBuiltInVariableString

glslang/Include/Types.h:2714–2714

    const char* getStorageQualifierString() const { return GetStorageQualifierString(qualifier.storage); }
    const char* getBuiltInVariableString() const { return GetBuiltInVariableString(qualifier.builtIn); }
    const char* getPrecisionQualifierString() const { return GetPrecisionQualifierString(qualifier.precision); }

    const TTypeList* getStruct() const { assert(isStruct()); return structure; }