Trying new lock tests.

Author: Geoffrey Challen

kern/test/synchtest.c

@@ -373,6 +373,8 @@ locktest4(int nargs, char **args) {
   (void) nargs;
   (void) args;
 
+	int result;
+
   kprintf_n("Starting lt4...\n");
   kprintf_n("(This test panics on success!)\n");
 
@@ -412,6 +414,8 @@ locktest5(int nargs, char **args) {
   (void) nargs;
   (void) args;
 
+	int result;
+
   kprintf_n("Starting lt5...\n");
   kprintf_n("(This test panics on success!)\n");