doc: Merge/update old Object.isXYZ docs into source [#116 state:fixed_in_branch]
doc: Merge/update old Object.isXYZ docs into source [#116 state:fixed_in_branch]

ShefronYudy/prototype,ShefronYudy/prototype,Jiasm/prototype,Jiasm/prototype,baiyanghese/prototype,loduis/prototype,erpframework/prototype,ridixcr/prototype,292388900/prototype,ShefronYudy/prototype,ridixcr/prototype,sdumitriu/prototype,292388900/prototype,sstephenson/prototype,Gargaj/prototype,loduis/prototype,sstephenson/prototype,lamsieuquay/prototype,Gargaj/prototype,ldf7801528/prototype,baiyanghese/prototype,lamsieuquay/prototype,sstephenson/prototype,ridixcr/prototype,fashionsun/prototype,erpframework/prototype,erpframework/prototype,fashionsun/prototype,leafo/prototype,ldf7801528/prototype,sdumitriu/prototype,ldf7801528/prototype,fashionsun/prototype,lamsieuquay/prototype,loduis/prototype,Jiasm/prototype,Gargaj/prototype,sdumitriu/prototype,leafo/prototype,292388900/prototype