const go/token.LowestPrec

5 uses

	go/token (current package)
		token.go#L254: 	LowestPrec  = 0 // non-operators
		token.go#L276: 	return LowestPrec

	go/parser
		parser.go#L1636: 	return p.parseBinaryExpr(lhs, token.LowestPrec+1)

	go/printer
		nodes.go#L1062: 	p.expr1(x, token.LowestPrec, depth)
		nodes.go#L1067: 	p.expr1(x, token.LowestPrec, depth)