x := p.parseRhs()
	if call, isCall := x.(*ast.CallExpr); isCall {
		return call
	}
	p.errorExpected(x.Pos(), "function/method call")
	return nil
}

func (p *parser) parseGoStmt() ast.Stmt {
	if p.trace {
		defer un(trace(p, "GoStmt"))
	}

	pos := p.expect(token.GO)
	call := p.parseCallExpr()
	p.expectSemi()
	if call == nil {

		// only report error if it's a new one
		p.error(p.safePos(x.End()), fmt.Sprintf("expression in %s must be function call", callType))
	}
	return nil
}

func (p *parser) parseGoStmt() ast.Stmt {
	if p.trace {
		defer un(trace(p, "GoStmt"))
	}

	pos := p.expect(token.GO)
	call := p.parseCallExpr("go")
	p.expectSemi()
	if call == nil {