Fix Hash#has_key? to only return true for properties of its own.
Fix Hash#has_key? to only return true for properties of its own.

Ajedi32/opal,fazibear/opal,jannishuebl/opal,Mogztter/opal,fazibear/opal,iliabylich/opal,suyesh/opal,bbatsov/opal,gabrielrios/opal,catprintlabs/opal,castwide/opal,Flikofbluelight747/opal,Ajedi32/opal,gabrielrios/opal,opal/opal,suyesh/opal,opal/opal,wied03/opal,jannishuebl/opal,Mogztter/opal,catprintlabs/opal,opal/opal,Flikofbluelight747/opal,merongivian/opal,Ajedi32/opal,kachick/opal,jgaskins/opal,kachick/opal,c42engineering/opal,castwide/opal,domgetter/opal,wied03/opal,catprintlabs/opal,wied03/opal,bbatsov/opal,c42engineering/opal,bbatsov/opal,c42engineering/opal,castwide/opal,fazibear/opal,jannishuebl/opal,Mogztter/opal,gausie/opal,opal/opal,gausie/opal,suyesh/opal,iliabylich/opal,merongivian/opal,jgaskins/opal,gabrielrios/opal,iliabylich/opal,jgaskins/opal,domgetter/opal,kachick/opal,gausie/opal,Mogztter/opal,kachick/opal,Flikofbluelight747/opal,merongivian/opal