Fix Xcode 15 runtime warning (#11825)

Author: paulb777

FirebasePerformance/CHANGELOG.md

@@ -1,3 +1,6 @@
+# 10.16.0
+- [fixed] Fix Xcode 15 runtime warning (#11821).
+
 # 10.12.0
 - [fixed] Make Firebase performance compatible with Xcode15.
 - [changed] Removed the capability to access Carrier information of the device since that API is deprecated by Apple.

FirebasePerformance/Sources/Instrumentation/Network/FPRNSURLSessionInstrument.m

@@ -405,8 +405,14 @@ void InstrumentUploadTaskWithRequestFromData(FPRNSURLSessionInstrument *instrume
       ThrowExceptionBecauseInstrumentHasBeenDeallocated(selector, instrumentor.instrumentedClass);
     }
     typedef NSURLSessionUploadTask *(*OriginalImp)(id, SEL, NSURLRequest *, NSData *);
+    // To avoid a runtime warning in Xcode 15, the given `URLRequest`
+    // should have a nil `HTTPBody`. To workaround this, the `HTTPBody` data is removed
+    // and requestData is replaced with it, if it bodyData was `nil`.
+    NSMutableURLRequest *requestWithoutHTTPBody = [request mutableCopy];
+    NSData *requestData = bodyData ?: requestWithoutHTTPBody.HTTPBody;
+    requestWithoutHTTPBody.HTTPBody = nil;
     NSURLSessionUploadTask *uploadTask =
-        ((OriginalImp)currentIMP)(session, selector, request, bodyData);
+        ((OriginalImp)currentIMP)(session, selector, requestWithoutHTTPBody, requestData);
     if (uploadTask.originalRequest) {
       FPRNetworkTrace *trace =
           [[FPRNetworkTrace alloc] initWithURLRequest:uploadTask.originalRequest];