Add utility methods to determine clang version
Add utility methods to determine clang version

Signed-off-by: Jack Nagel <43386ce32af96f5c56f2a88e458cb94cebee3751@gmail.com>

mahori/brew,MikeMcQuaid/brew,claui/brew,muellermartin/dist,ilovezfs/brew,bfontaine/brew,DomT4/brew,pseudocody/brew,alyssais/brew,nandub/brew,EricFromCanada/brew,tonyg/homebrew,vitorgalvao/brew,Linuxbrew/brew,reelsense/brew,mistydemeo/homebrew,Homebrew/brew,tonyg/homebrew,hanxue/linuxbrew,claui/brew,DomT4/brew,gordonmcshane/homebrew,amar-laksh/brew_sudo,toonetown/homebrew,maxim-belkin/brew,hanxue/linuxbrew,zmwangx/brew,mahori/brew,aw1621107/brew,jmsundar/brew,vitorgalvao/brew,mgrimes/brew,MikeMcQuaid/brew,pseudocody/brew,JCount/brew,DomT4/brew,claui/brew,bfontaine/brew,mahori/brew,palxex/brew,nandub/brew,zmwangx/brew,nandub/brew,bfontaine/brew,konqui/brew,muellermartin/dist,staticfloat/brew,maxim-belkin/brew,zmwangx/brew,claui/brew,konqui/brew,nandub/brew,JCount/brew,ilovezfs/brew,MikeMcQuaid/brew,Linuxbrew/brew,rwhogg/brew,mistydemeo/homebrew,mahori/brew,sjackman/homebrew,AnastasiaSulyagina/brew,amar-laksh/brew_sudo,AnastasiaSulyagina/brew,Linuxbrew/brew,mgrimes/brew,toonetown/homebrew,Linuxbrew/brew,konqui/brew,mgrimes/brew,Homebrew/brew,EricFromCanada/brew,pseudocody/brew,sjackman/homebrew,aw1621107/brew,amar-laksh/brew_sudo,jmsundar/brew,Homebrew/brew,DomT4/brew,EricFromCanada/brew,konqui/brew,gregory-nisbet/brew,Homebrew/brew,maxim-belkin/brew,gregory-nisbet/brew,aw1621107/brew,vitorgalvao/brew,palxex/brew,hanxue/linuxbrew,muellermartin/dist,gordonmcshane/homebrew,reitermarkus/brew,JCount/brew,ilovezfs/brew,JCount/brew,sjackman/homebrew,palxex/brew,jmsundar/brew,rwhogg/brew,reitermarkus/brew,mistydemeo/homebrew,toonetown/homebrew,reelsense/brew,alyssais/brew,reelsense/brew,vitorgalvao/brew,reitermarkus/brew,gregory-nisbet/brew,EricFromCanada/brew,sjackman/homebrew,MikeMcQuaid/brew,reitermarkus/brew,AnastasiaSulyagina/brew,tonyg/homebrew,staticfloat/brew,gordonmcshane/homebrew,staticfloat/brew,rwhogg/brew,alyssais/brew