Fixed typos

Author: jimgrundy

regression/contracts/function_check_mem_01/main.c

@@ -9,7 +9,7 @@
 
 #define __CPROVER_VALID_MEM(ptr, size)                                         \
   __CPROVER_POINTER_OBJECT((ptr)) != __CPROVER_POINTER_OBJECT(NULL) &&         \
-    !__CPROVER_invalid_pointer((ptr)) &&                                       \
+    !__CPROVER_is_invalid_pointer((ptr)) &&                                    \
     __CPROVER_POINTER_OBJECT((ptr)) !=                                         \
       __CPROVER_POINTER_OBJECT(__CPROVER_deallocated) &&                       \
     __CPROVER_POINTER_OBJECT((ptr)) !=                                         \
@@ -28,7 +28,7 @@ void foo(bar *x)
   __CPROVER_requires(__CPROVER_VALID_MEM(x, sizeof(bar)))
 {
   x->x += 1;
-  return
+  return;
 }
 
 int main()