Prerender during same pass if blocked anyway (#30879)

If something suspends in the shell — i.e. we won't replace the suspended
content with a fallback — we might as well prerender the siblings during
the current render pass, instead of spawning a separate prerender pass.

This is implemented by setting the "is prerendering" flag to true
whenever we suspend in the shell. But only if we haven't already skipped
over some siblings, because if so, then we need to schedule a separate
prerender pass regardless.

DiffTrain build for [66cf2cf](66cf2cf)

Author: acdlite

compiled/facebook-www/REVISION

@@ -1 +1 @@
-d160aa0fbb1bd2d00ea8c771c551c9cb5b47f1e9
+66cf2cfc8a8c4b09d2b783fd7302ae6b24150935

compiled/facebook-www/REVISION_TRANSFORMS

@@ -1 +1 @@
-d160aa0fbb1bd2d00ea8c771c551c9cb5b47f1e9
+66cf2cfc8a8c4b09d2b783fd7302ae6b24150935

compiled/facebook-www/React-dev.classic.js

@@ -2001,7 +2001,7 @@ __DEV__ &&
     exports.useTransition = function () {
       return resolveDispatcher().useTransition();
     };
-    exports.version = "19.0.0-www-classic-d160aa0f-20240910";
+    exports.version = "19.0.0-www-classic-66cf2cfc-20240910";
     "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
       "function" ===
         typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

compiled/facebook-www/React-dev.modern.js

@@ -1981,7 +1981,7 @@ __DEV__ &&
     exports.useTransition = function () {
       return resolveDispatcher().useTransition();
     };
-    exports.version = "19.0.0-www-modern-d160aa0f-20240910";
+    exports.version = "19.0.0-www-modern-66cf2cfc-20240910";
     "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
       "function" ===
         typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

compiled/facebook-www/React-prod.classic.js

@@ -665,4 +665,4 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactSharedInternals.H.useTransition();
 };
-exports.version = "19.0.0-www-classic-d160aa0f-20240910";
+exports.version = "19.0.0-www-classic-66cf2cfc-20240910";

compiled/facebook-www/React-prod.modern.js

@@ -665,4 +665,4 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactSharedInternals.H.useTransition();
 };
-exports.version = "19.0.0-www-modern-d160aa0f-20240910";
+exports.version = "19.0.0-www-modern-66cf2cfc-20240910";

compiled/facebook-www/React-profiling.classic.js

@@ -669,7 +669,7 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactSharedInternals.H.useTransition();
 };
-exports.version = "19.0.0-www-classic-d160aa0f-20240910";
+exports.version = "19.0.0-www-classic-66cf2cfc-20240910";
 "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
   "function" ===
     typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

compiled/facebook-www/React-profiling.modern.js

@@ -669,7 +669,7 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactSharedInternals.H.useTransition();
 };
-exports.version = "19.0.0-www-modern-d160aa0f-20240910";
+exports.version = "19.0.0-www-modern-66cf2cfc-20240910";
 "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
   "function" ===
     typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

compiled/facebook-www/ReactART-dev.classic.js

@@ -12940,6 +12940,9 @@ __DEV__ &&
     }
     function renderDidSuspendDelayIfPossible() {
       workInProgressRootExitStatus = RootSuspendedWithDelay;
+      workInProgressRootDidSkipSuspendedSiblings ||
+        0 !== (workInProgressRootRenderLanes & 60) ||
+        (workInProgressRootIsPrerendering = !0);
       (0 === (workInProgressRootSkippedLanes & 134217727) &&
         0 === (workInProgressRootInterleavedUpdatedLanes & 134217727)) ||
         null === workInProgressRoot ||
@@ -16964,11 +16967,11 @@ __DEV__ &&
     (function () {
       var internals = {
         bundleType: 1,
-        version: "19.0.0-www-classic-d160aa0f-20240910",
+        version: "19.0.0-www-classic-66cf2cfc-20240910",
         rendererPackageName: "react-art",
         currentDispatcherRef: ReactSharedInternals,
         findFiberByHostInstance: getInstanceFromNode,
-        reconcilerVersion: "19.0.0-www-classic-d160aa0f-20240910"
+        reconcilerVersion: "19.0.0-www-classic-66cf2cfc-20240910"
       };
       internals.overrideHookState = overrideHookState;
       internals.overrideHookStateDeletePath = overrideHookStateDeletePath;
@@ -17002,7 +17005,7 @@ __DEV__ &&
     exports.Shape = Shape;
     exports.Surface = Surface;
     exports.Text = Text;
-    exports.version = "19.0.0-www-classic-d160aa0f-20240910";
+    exports.version = "19.0.0-www-classic-66cf2cfc-20240910";
     "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
       "function" ===
         typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

compiled/facebook-www/ReactART-dev.modern.js

@@ -12488,6 +12488,9 @@ __DEV__ &&
     }
     function renderDidSuspendDelayIfPossible() {
       workInProgressRootExitStatus = RootSuspendedWithDelay;
+      workInProgressRootDidSkipSuspendedSiblings ||
+        0 !== (workInProgressRootRenderLanes & 60) ||
+        (workInProgressRootIsPrerendering = !0);
       (0 === (workInProgressRootSkippedLanes & 134217727) &&
         0 === (workInProgressRootInterleavedUpdatedLanes & 134217727)) ||
         null === workInProgressRoot ||
@@ -16410,11 +16413,11 @@ __DEV__ &&
     (function () {
       var internals = {
         bundleType: 1,
-        version: "19.0.0-www-modern-d160aa0f-20240910",
+        version: "19.0.0-www-modern-66cf2cfc-20240910",
         rendererPackageName: "react-art",
         currentDispatcherRef: ReactSharedInternals,
         findFiberByHostInstance: getInstanceFromNode,
-        reconcilerVersion: "19.0.0-www-modern-d160aa0f-20240910"
+        reconcilerVersion: "19.0.0-www-modern-66cf2cfc-20240910"
       };
       internals.overrideHookState = overrideHookState;
       internals.overrideHookStateDeletePath = overrideHookStateDeletePath;
@@ -16448,7 +16451,7 @@ __DEV__ &&
     exports.Shape = Shape;
     exports.Surface = Surface;
     exports.Text = Text;
-    exports.version = "19.0.0-www-modern-d160aa0f-20240910";
+    exports.version = "19.0.0-www-modern-66cf2cfc-20240910";
     "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
       "function" ===
         typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&