Replace runTestCase with assert helpers [test/built-ins/Object/create]

test/built-ins/Object/create/15.2.3.5-0-1.js

test/built-ins/Object/create/15.2.3.5-0-2.js

test/built-ins/Object/create/15.2.3.5-2-1.js

test/built-ins/Object/create/15.2.3.5-2-2.js

test/built-ins/Object/create/15.2.3.5-3-1.js

test/built-ins/Object/create/15.2.3.5-4-1.js

test/built-ins/Object/create/15.2.3.5-4-102.js

test/built-ins/Object/create/15.2.3.5-4-105.js

test/built-ins/Object/create/15.2.3.5-4-106.js

test/built-ins/Object/create/15.2.3.5-4-11.js

test/built-ins/Object/create/15.2.3.5-4-112.js

test/built-ins/Object/create/15.2.3.5-4-113.js

test/built-ins/Object/create/15.2.3.5-4-114.js

test/built-ins/Object/create/15.2.3.5-4-115.js

test/built-ins/Object/create/15.2.3.5-4-116.js

test/built-ins/Object/create/15.2.3.5-4-118.js

test/built-ins/Object/create/15.2.3.5-4-119.js

test/built-ins/Object/create/15.2.3.5-4-12.js

test/built-ins/Object/create/15.2.3.5-4-121.js

test/built-ins/Object/create/15.2.3.5-4-122.js