Fix issue #15667 : X# compiler doesn't prevent defining a function inside a function
Fix issue #15667 : X# compiler doesn't prevent defining a function inside a function



trivalik/Cosmos,sgetaz/Cosmos,MetSystem/Cosmos,CosmosOS/Cosmos,kant2002/Cosmos-1,fanoI/Cosmos,fanoI/Cosmos,sgetaz/Cosmos,zarlo/Cosmos,sgetaz/Cosmos,CosmosOS/Cosmos,fanoI/Cosmos,MyvarHD/Cosmos,CosmosOS/Cosmos,Cyber4/Cosmos,zarlo/Cosmos,Cyber4/Cosmos,tgiphil/Cosmos,tgiphil/Cosmos,MetSystem/Cosmos,Cyber4/Cosmos,jp2masa/Cosmos,kant2002/Cosmos-1,zhangwenquan/Cosmos,kant2002/Cosmos-1,tgiphil/Cosmos,sgetaz/Cosmos,zdimension/Cosmos,zhangwenquan/Cosmos,MyvarHD/Cosmos,zhangwenquan/Cosmos,Cyber4/Cosmos,zhangwenquan/Cosmos,zhangwenquan/Cosmos,zdimension/Cosmos,zarlo/Cosmos,MyvarHD/Cosmos,MetSystem/Cosmos,trivalik/Cosmos,zdimension/Cosmos,Cyber4/Cosmos,trivalik/Cosmos,zdimension/Cosmos,MyvarHD/Cosmos,jp2masa/Cosmos,zarlo/Cosmos,sgetaz/Cosmos,jp2masa/Cosmos,zdimension/Cosmos,kant2002/Cosmos-1,CosmosOS/Cosmos,MyvarHD/Cosmos,MetSystem/Cosmos,MetSystem/Cosmos