const go/token.SHR_ASSIGN

4 uses

	go/token (current package)
		token.go#L61: 	SHR_ASSIGN     // >>=
		token.go#L170: 	SHR_ASSIGN:     ">>=",

	go/parser
		parser.go#L1923: 		token.XOR_ASSIGN, token.SHL_ASSIGN, token.SHR_ASSIGN, token.AND_NOT_ASSIGN:

	go/scanner
		scanner.go#L927: 			tok = s.switch4(token.GTR, token.GEQ, '>', token.SHR, token.SHR_ASSIGN)