nil out pendingCalls when we're done with them

Reviewed By: mmmulani

Differential Revision: D3543825

fbshipit-source-id: cf2fcdb4e1536c00675fafa85d0f880313a80655

React/Base/RCTBatchedBridge.m

@@ -496,10 +496,14 @@ RCT_EXTERN NSArray<Class> *RCTGetModuleClasses(void);
   RCTAssertJSThread();
   [_performanceLogger markStopForTag:RCTPLBridgeStartup];
 
+  RCT_PROFILE_BEGIN_EVENT(0, @"Processing pendingCalls", @{ @"count": @(_pendingCalls.count) });
   _loading = NO;
-  for (dispatch_block_t call in self->_pendingCalls) {
+  NSArray *pendingCalls = _pendingCalls;
+  _pendingCalls = nil;
+  for (dispatch_block_t call in pendingCalls) {
     call();
   }
+  RCT_PROFILE_END_EVENT(0, @"", nil);
 }
 
 - (void)stopLoadingWithError:(NSError *)error