func go/constant.UnaryOp

5 uses

	go/constant (current package)
		value.go#L949: func UnaryOp(op token.Token, y Value, prec uint) Value {
		value.go#L973: 			re := UnaryOp(token.SUB, y.re, 0)
		value.go#L974: 			im := UnaryOp(token.SUB, y.im, 0)

	go/types
		expr.go#L214: 		x.val = constant.UnaryOp(e.Op, x.val, prec)

	golang.org/x/tools/internal/gcimporter
		bimport.go#L819: 		x = constant.UnaryOp(token.SUB, x, 0)