Allow fails_with_llvm {}
Allow fails_with_llvm {}

And fix node and ruby to use LLVM without complaint with Xcode 4.1 and Lion.
amar-laksh/brew_sudo,vitorgalvao/brew,MikeMcQuaid/brew,toonetown/homebrew,mahori/brew,muellermartin/dist,sjackman/homebrew,staticfloat/brew,ilovezfs/brew,gordonmcshane/homebrew,ilovezfs/brew,konqui/brew,AnastasiaSulyagina/brew,alyssais/brew,mgrimes/brew,hanxue/linuxbrew,gordonmcshane/homebrew,aw1621107/brew,pseudocody/brew,Linuxbrew/brew,Linuxbrew/brew,Homebrew/brew,reelsense/brew,staticfloat/brew,mistydemeo/homebrew,DomT4/brew,reelsense/brew,zmwangx/brew,tonyg/homebrew,nandub/brew,AnastasiaSulyagina/brew,bfontaine/brew,alyssais/brew,rwhogg/brew,reitermarkus/brew,claui/brew,bfontaine/brew,zmwangx/brew,JCount/brew,claui/brew,jmsundar/brew,Homebrew/brew,rwhogg/brew,palxex/brew,zmwangx/brew,Homebrew/brew,toonetown/homebrew,MikeMcQuaid/brew,maxim-belkin/brew,JCount/brew,muellermartin/dist,nandub/brew,aw1621107/brew,AnastasiaSulyagina/brew,konqui/brew,tonyg/homebrew,EricFromCanada/brew,palxex/brew,mahori/brew,mahori/brew,MikeMcQuaid/brew,reitermarkus/brew,vitorgalvao/brew,Homebrew/brew,toonetown/homebrew,alyssais/brew,tonyg/homebrew,reelsense/brew,DomT4/brew,claui/brew,mistydemeo/homebrew,jmsundar/brew,mgrimes/brew,jmsundar/brew,rwhogg/brew,vitorgalvao/brew,mahori/brew,staticfloat/brew,ilovezfs/brew,nandub/brew,MikeMcQuaid/brew,hanxue/linuxbrew,amar-laksh/brew_sudo,DomT4/brew,gregory-nisbet/brew,gregory-nisbet/brew,Linuxbrew/brew,bfontaine/brew,Linuxbrew/brew,claui/brew,reitermarkus/brew,maxim-belkin/brew,JCount/brew,muellermartin/dist,sjackman/homebrew,EricFromCanada/brew,aw1621107/brew,hanxue/linuxbrew,sjackman/homebrew,pseudocody/brew,reitermarkus/brew,konqui/brew,EricFromCanada/brew,nandub/brew,gregory-nisbet/brew,EricFromCanada/brew,mistydemeo/homebrew,sjackman/homebrew,palxex/brew,konqui/brew,DomT4/brew,gordonmcshane/homebrew,pseudocody/brew,mgrimes/brew,vitorgalvao/brew,JCount/brew,maxim-belkin/brew,amar-laksh/brew_sudo