[sledge] Adjust tests to match harnesses

Reviewed By: ngorogiannis

Differential Revision: D17801945

fbshipit-source-id: 0f984e013

sledge/test/frontend/address_of_label.cpp

@@ -22,3 +22,9 @@ SWAPWORD:
   result = (result << 16) | (result >> 16);
   goto* codetable[*(opcodes++)];
 }
+
+int main() {
+  char opcodes[10];
+
+  return fn(opcodes);
+}

sledge/test/frontend/cond_alloca.cpp

@@ -5,9 +5,10 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-int main(int argc, const char* argv[]) {
+int main() {
+  int n;
   int a = 0;
-  if (argc > 0) {
+  if (n > 0) {
     int b = 1;
   };
   return 0;