Fixed build error in Visual Studio 2017 (#4353)
Fixed build error in Visual Studio 2017 (#4353)

flatbuffers.h(591): error C2220: warning treated as error - no 'object' file generated
flatbuffers.h(591): warning C4267: 'return': conversion from 'size_t' to 'flatbuffers::uoffset_t', possible loss of data
royalharsh/flatbuffers,jekinchen/flatjni,hgl888/flatbuffers,google/flatbuffers,stewartmiles/flatbuffers,google/flatbuffers,DavadDi/flatbuffers,pjulien/flatbuffers,alexames/flatbuffers,rw/flatbuffers,stewartmiles/flatbuffers,alexames/flatbuffers,evolutional/flatbuffers,google/flatbuffers,rw/flatbuffers,endorph-soft/flatbuffers,royalharsh/flatbuffers,stewartmiles/flatbuffers,chenkai036/flatbuffers,jekinchen/flatjni,chenkai036/flatbuffers,chenkai036/flatbuffers,hgl888/flatbuffers,pjulien/flatbuffers,google/flatbuffers,rw/flatbuffers,evolutional/flatbuffers,alexames/flatbuffers,jekinchen/flatjni,stewartmiles/flatbuffers,google/flatbuffers,google/flatbuffers,evolutional/flatbuffers,evolutional/flatbuffers,rw/flatbuffers,alexames/flatbuffers,rw/flatbuffers,pjulien/flatbuffers,pjulien/flatbuffers,endorph-soft/flatbuffers,chenkai036/flatbuffers,pjulien/flatbuffers,chenkai036/flatbuffers,evolutional/flatbuffers,jekinchen/flatjni,alexames/flatbuffers,jekinchen/flatjni,pjulien/flatbuffers,alexames/flatbuffers,stewartmiles/flatbuffers,rw/flatbuffers,alexames/flatbuffers,endorph-soft/flatbuffers,stewartmiles/flatbuffers,royalharsh/flatbuffers,jekinchen/flatjni,endorph-soft/flatbuffers,chenkai036/flatbuffers,royalharsh/flatbuffers,chenkai036/flatbuffers,endorph-soft/flatbuffers,jekinchen/flatjni,royalharsh/flatbuffers,google/flatbuffers,google/flatbuffers,alexames/flatbuffers,rw/flatbuffers,jekinchen/flatjni,evolutional/flatbuffers,alexames/flatbuffers,royalharsh/flatbuffers,DavadDi/flatbuffers,stewartmiles/flatbuffers,pjulien/flatbuffers,chenkai036/flatbuffers,DavadDi/flatbuffers,DavadDi/flatbuffers,pjulien/flatbuffers,alexames/flatbuffers,jekinchen/flatjni,google/flatbuffers,rw/flatbuffers,rw/flatbuffers,jekinchen/flatjni,endorph-soft/flatbuffers,stewartmiles/flatbuffers,royalharsh/flatbuffers,royalharsh/flatbuffers,rw/flatbuffers,hgl888/flatbuffers,royalharsh/flatbuffers,evolutional/flatbuffers,evolutional/flatbuffers,google/flatbuffers,endorph-soft/flatbuffers,endorph-soft/flatbuffers,pjulien/flatbuffers,google/flatbuffers,DavadDi/flatbuffers,hgl888/flatbuffers,evolutional/flatbuffers,evolutional/flatbuffers,DavadDi/flatbuffers,alexames/flatbuffers,stewartmiles/flatbuffers,google/flatbuffers,google/flatbuffers,pjulien/flatbuffers,alexames/flatbuffers,hgl888/flatbuffers,pjulien/flatbuffers,chenkai036/flatbuffers,alexames/flatbuffers,evolutional/flatbuffers,google/flatbuffers,google/flatbuffers,alexames/flatbuffers,alexames/flatbuffers,chenkai036/flatbuffers,endorph-soft/flatbuffers,royalharsh/flatbuffers,rw/flatbuffers,stewartmiles/flatbuffers,rw/flatbuffers,pjulien/flatbuffers,stewartmiles/flatbuffers,stewartmiles/flatbuffers,evolutional/flatbuffers,hgl888/flatbuffers,endorph-soft/flatbuffers,evolutional/flatbuffers,stewartmiles/flatbuffers