src: avoid compiler warning in node_revert.cc

PR-URL: nodejs-private/node-private#26
Reviewed-By: Rod Vagg <r@va.gg>
Reviewed-By: Сковорода Никита Андреевич <chalkerx@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

Author: jasnell

CHANGELOG.md

@@ -18,6 +18,7 @@
 * [[`1408f7abb1`](https://github.com/nodejs/node/commit/1408f7abb1)] - **module,src**: do not wrap modules with -1 lineOffset (cjihrig) [#4298](https://github.com/nodejs/node/pull/4298)
 * [[`1f8e1472cc`](https://github.com/nodejs/node/commit/1f8e1472cc)] - **test**: add test for debugging one line files (cjihrig) [#4298](https://github.com/nodejs/node/pull/4298)
 
+
 ## 2016-01-20, Version 5.5.0 (Stable), @evanlucas
 
 ### Notable Changes

src/node_revert.cc

@@ -25,7 +25,7 @@ void Revert(const char* cve) {
 #define V(code, label, _)                                                     \
   do {                                                                        \
     if (strcmp(cve, label) == 0) {                                            \
-      Revert(REVERT_ ## code);                                                \
+      Revert(static_cast<unsigned int>(REVERT_ ## code));                     \
       return;                                                                 \
     }                                                                         \
   } while (0);
@@ -43,7 +43,7 @@ bool IsReverted(const char * cve) {
 #define V(code, label, _)                                                     \
   do {                                                                        \
     if (strcmp(cve, label) == 0)                                              \
-      return IsReverted(REVERT_ ## code);                                     \
+      return IsReverted(static_cast<unsigned int>(REVERT_ ## code));          \
   } while (0);
   REVERSIONS(V)
   return false;