Track owner of console logs

That way we can also restore owner stack traces for those logs and
associate the log with a particular component in DevTools.

packages/react-client/src/ReactFlightClient.js

@@ -1138,12 +1138,14 @@ function resolveConsoleEntry(
     );
   }
 
-  const payload: [string, string, string, mixed] = parseModel(response, value);
+  const payload: [string, string, null | ReactComponentInfo, string, mixed] =
+    parseModel(response, value);
   const methodName = payload[0];
   // TODO: Restore the fake stack before logging.
   // const stackTrace = payload[1];
-  const env = payload[2];
-  const args = payload.slice(3);
+  // const owner = payload[2];
+  const env = payload[3];
+  const args = payload.slice(4);
   printToConsole(methodName, args, env);
 }
 

packages/react-server/src/ReactFlightServer.js

@@ -154,7 +154,8 @@ function patchConsole(consoleInst: typeof console, methodName: string) {
         // We don't currently use this id for anything but we emit it so that we can later
         // refer to previous logs in debug info to associate them with a component.
         const id = request.nextChunkId++;
-        emitConsoleChunk(request, id, methodName, stack, arguments);
+        const owner: null | ReactComponentInfo = ReactCurrentOwner.current;
+        emitConsoleChunk(request, id, methodName, owner, stack, arguments);
       }
       // $FlowFixMe[prop-missing]
       return originalMethod.apply(this, arguments);
@@ -2272,6 +2273,7 @@ function emitConsoleChunk(
   request: Request,
   id: number,
   methodName: string,
+  owner: null | ReactComponentInfo,
   stackTrace: string,
   args: Array<any>,
 ): void {
@@ -2306,7 +2308,7 @@ function emitConsoleChunk(
 
   // TODO: Don't double badge if this log came from another Flight Client.
   const env = request.environmentName;
-  const payload = [methodName, stackTrace, env];
+  const payload = [methodName, stackTrace, owner, env];
   // $FlowFixMe[method-unbinding]
   payload.push.apply(payload, args);
   // $FlowFixMe[incompatible-type] stringify can return null