Exactly how I find minute details like this is beyond me.
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/
6842125
01 // Add 1 to get field number 0: field[1].name
01 // 1 byte
59 // structType.field[1].name = "Y"
- 01 // Add 1 to get field number 1: field[0].id
+ 01 // Add 1 to get field number 1: field[1].id
04 // struct.Type.field[1].typeId is 2 (signed int).
00 // End of structType.field[1]; end of structType.field.
00 // end of wireType.structType structure