testElementMethodInsert: add test for non-lowercase position argument
testElementMethodInsert: add test for non-lowercase position argument

fashionsun/prototype,Jiasm/prototype,jgornick/fusejs,ldf7801528/prototype,erpframework/prototype,ldf7801528/prototype,loduis/prototype,292388900/prototype,sstephenson/prototype,jgornick/fusejs,sdumitriu/prototype,Gargaj/prototype,fashionsun/prototype,mc0/fusejs,madrobby/prototype,kangax/prototype,sstephenson/prototype,ShefronYudy/prototype,lamsieuquay/prototype,loduis/prototype,erpframework/prototype,savetheclocktower/prototype,sdumitriu/prototype,loduis/prototype,madrobby/prototype,292388900/prototype,erpframework/prototype,Jiasm/prototype,ridixcr/prototype,ShefronYudy/prototype,ldf7801528/prototype,leafo/prototype,fashionsun/prototype,Gargaj/prototype,Gargaj/prototype,kangax/prototype,sstephenson/prototype,mc0/fusejs,leafo/prototype,ShefronYudy/prototype,GunioRobot/fusejs,baiyanghese/prototype,sdumitriu/prototype,lamsieuquay/prototype,GunioRobot/fusejs,kensnyder/fusejs,baiyanghese/prototype,kensnyder/fusejs,Jiasm/prototype,292388900/prototype,ridixcr/prototype,lamsieuquay/prototype,ridixcr/prototype,savetheclocktower/prototype