gccgo: does not understand greek capiltal letter yot #11569
Description
gccgo fails to compile the following program:
package p
const Ϳ = 0
go.go:2:7: error: invalid character 0x37f in input file
That's greek capiltal letter yot:
http://www.fileformat.info/info/unicode/char/37f/index.htm
gcc version 6.0.0 2015070 (experimental) (GCC)