const text/template/parse.itemNumber

4 uses

	text/template/parse (current package)
		lex.go#L53: 	itemNumber     // simple number, including imaginary
		lex.go#L578: 		l.emit(itemNumber)
		parse.go#L455: 			itemNumber, itemNil, itemRawString, itemString, itemVariable, itemLeftParen:
		parse.go#L706: 	case itemCharConstant, itemComplex, itemNumber: