folly/test/SpinLockTest.cpp: avoid shadowing warnings

Summary: Fix warnings exposed by the upstream-proposed -Wshadow-compatible-local option.

Reviewed By: igorsugak

Differential Revision: D4041919

fbshipit-source-id: 52579a4b7477192ec7145f81216200f81b191183

diff --git a/folly/test/SpinLockTest.cpp b/folly/test/SpinLockTest.cpp
index 0312240202402885c9a8b2029f9f7ca304b9086c..3b10b5dbb59c3dfd391c7fc1075690cbde659a99 100644 (file)
--- a/folly/test/SpinLockTest.cpp
+++ b/folly/test/SpinLockTest.cpp
@@ -45,8 +45,8 @@ void spinlockTestThread(LockedVal<LOCK>* v) {
     SpinLockGuardImpl<LOCK> g(v->lock);
 
     int first = v->ar[0];
-    for (size_t i = 1; i < sizeof v->ar / sizeof i; ++i) {
-      EXPECT_EQ(first, v->ar[i]);
+    for (size_t j = 1; j < sizeof v->ar / sizeof j; ++j) {
+      EXPECT_EQ(first, v->ar[j]);
     }
 
     int byte = folly::Random::rand32(rng);