updated the test case files for these on git-hub.
a)	assertThat, assertNull, assertNotNull are hamcrest library methods . added varying use cases
b)	Cascaded if-else_if-else issue
c)	.internal. keyword occurrences in AS3 code should be converted into following in Haxe:
@:allow(<current package name>) \n\t private
d)	Cascaded switch issue