const text/template/parse.itemNil

4 uses

	text/template/parse (current package)
		lex.go#L72: 	itemNil      // the untyped nil constant, easiest to treat as a keyword
		lex.go#L88: 	"nil":      itemNil,
		parse.go#L488: 			itemNumber, itemNil, itemRawString, itemString, itemVariable, itemLeftParen:
		parse.go#L739: 	case itemNil: