INVALID stops the operation and doesn't cost gas

Author: nicksavers

vmtests/vmIOandFlowOperationsTest.json

@@ -20,7 +20,7 @@
             "origin" : "cd1722f3947def4cf144679da39c4c32bdc35681",
             "value" : "1000000000000000000"
         },
-        "gas" : "9997",
+        "gas" : "9998",
         "out" : "0x",
         "post" : {
             "0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6" : {
@@ -1222,7 +1222,7 @@
             "origin" : "cd1722f3947def4cf144679da39c4c32bdc35681",
             "value" : "1000000000000000000"
         },
-        "gas" : "9997",
+        "gas" : "9998",
         "out" : "0x",
         "post" : {
             "0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6" : {
@@ -1243,4 +1243,4 @@
             }
         }
     }
-}
+}