samples: add Terra samples

source: https://github.com/zdevito/terra/tree/master/tests

samples/Terra/numliteral.t

@@ -0,0 +1,14 @@
+
+terra thetest()
+	var a,b,c,d,e = 3,3.0,3.f,3LL, 3ULL
+	return a,b,c,d,e
+end
+
+local exp = { "int32", "double", "float", "int64", "uint64" }
+
+local test = require("test")
+thetest:compile()
+local typ = thetest.definitions[1]:gettype()
+for i,e in ipairs(typ.returntype:getentries()) do
+	test.eq(tostring(e.type),exp[i]) 
+end