[Fiber] Don't throw away the Error object retaining the owner stack (facebook#33976)

We currently throw away the Error once we've used to the owner stack of
a Fiber once. This maybe helps a bit with memory and redoing it but we
really don't expect most Fibers to hit this at all. It's not very hot.

If we throw away the Error, then we can't use native debugger protocols
to inspect the native stack. Instead, we'd have to maintain a url to
resource map indefinitely like what Chrome DevTools does to map a url to
a resource. Technically it's not even technically correct since the file
path might not be reversible and could in theory conflict.

DiffTrain build for [4f34cc4](facebook@4f34cc4)

Author: pull[bot]

compiled/facebook-www/REVISION

@@ -1 +1 @@
-edac0dded99d56e7d66a88da83e874761e3e937a
+4f34cc4a2e1198493375867d1876509ae9771aee

compiled/facebook-www/REVISION_TRANSFORMS

@@ -1 +1 @@
-edac0dded99d56e7d66a88da83e874761e3e937a
+4f34cc4a2e1198493375867d1876509ae9771aee

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

@@ -1434,7 +1434,7 @@ __DEV__ &&
     exports.useTransition = function () {
       return resolveDispatcher().useTransition();
     };
-    exports.version = "19.2.0-www-classic-edac0dde-20250723";
+    exports.version = "19.2.0-www-classic-4f34cc4a-20250724";
     "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
       "function" ===
         typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

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

@@ -1434,7 +1434,7 @@ __DEV__ &&
     exports.useTransition = function () {
       return resolveDispatcher().useTransition();
     };
-    exports.version = "19.2.0-www-modern-edac0dde-20250723";
+    exports.version = "19.2.0-www-modern-4f34cc4a-20250724";
     "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
       "function" ===
         typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

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

@@ -610,4 +610,4 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactSharedInternals.H.useTransition();
 };
-exports.version = "19.2.0-www-classic-edac0dde-20250723";
+exports.version = "19.2.0-www-classic-4f34cc4a-20250724";

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

@@ -610,4 +610,4 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactSharedInternals.H.useTransition();
 };
-exports.version = "19.2.0-www-modern-edac0dde-20250723";
+exports.version = "19.2.0-www-modern-4f34cc4a-20250724";

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

@@ -614,7 +614,7 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactSharedInternals.H.useTransition();
 };
-exports.version = "19.2.0-www-classic-edac0dde-20250723";
+exports.version = "19.2.0-www-classic-4f34cc4a-20250724";
 "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
   "function" ===
     typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

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

@@ -614,7 +614,7 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactSharedInternals.H.useTransition();
 };
-exports.version = "19.2.0-www-modern-edac0dde-20250723";
+exports.version = "19.2.0-www-modern-4f34cc4a-20250724";
 "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
   "function" ===
     typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

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

@@ -2640,11 +2640,10 @@ __DEV__ &&
             var fiber = workInProgress;
             workInProgress = fiber._debugOwner;
             var debugStack = fiber._debugStack;
-            workInProgress &&
-              debugStack &&
-              ("string" !== typeof debugStack &&
-                (fiber._debugStack = debugStack = formatOwnerStack(debugStack)),
-              "" !== debugStack && (info += "\n" + debugStack));
+            if (workInProgress && debugStack) {
+              var formattedStack = formatOwnerStack(debugStack);
+              "" !== formattedStack && (info += "\n" + formattedStack);
+            }
           } else if (null != workInProgress.debugStack) {
             var ownerStack = workInProgress.debugStack;
             (workInProgress = workInProgress.owner) &&
@@ -19300,10 +19299,10 @@ __DEV__ &&
     (function () {
       var internals = {
         bundleType: 1,
-        version: "19.2.0-www-classic-edac0dde-20250723",
+        version: "19.2.0-www-classic-4f34cc4a-20250724",
         rendererPackageName: "react-art",
         currentDispatcherRef: ReactSharedInternals,
-        reconcilerVersion: "19.2.0-www-classic-edac0dde-20250723"
+        reconcilerVersion: "19.2.0-www-classic-4f34cc4a-20250724"
       };
       internals.overrideHookState = overrideHookState;
       internals.overrideHookStateDeletePath = overrideHookStateDeletePath;
@@ -19337,7 +19336,7 @@ __DEV__ &&
     exports.Shape = Shape;
     exports.Surface = Surface;
     exports.Text = Text;
-    exports.version = "19.2.0-www-classic-edac0dde-20250723";
+    exports.version = "19.2.0-www-classic-4f34cc4a-20250724";
     "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
       "function" ===
         typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

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

@@ -2546,11 +2546,10 @@ __DEV__ &&
             var fiber = workInProgress;
             workInProgress = fiber._debugOwner;
             var debugStack = fiber._debugStack;
-            workInProgress &&
-              debugStack &&
-              ("string" !== typeof debugStack &&
-                (fiber._debugStack = debugStack = formatOwnerStack(debugStack)),
-              "" !== debugStack && (info += "\n" + debugStack));
+            if (workInProgress && debugStack) {
+              var formattedStack = formatOwnerStack(debugStack);
+              "" !== formattedStack && (info += "\n" + formattedStack);
+            }
           } else if (null != workInProgress.debugStack) {
             var ownerStack = workInProgress.debugStack;
             (workInProgress = workInProgress.owner) &&
@@ -19071,10 +19070,10 @@ __DEV__ &&
     (function () {
       var internals = {
         bundleType: 1,
-        version: "19.2.0-www-modern-edac0dde-20250723",
+        version: "19.2.0-www-modern-4f34cc4a-20250724",
         rendererPackageName: "react-art",
         currentDispatcherRef: ReactSharedInternals,
-        reconcilerVersion: "19.2.0-www-modern-edac0dde-20250723"
+        reconcilerVersion: "19.2.0-www-modern-4f34cc4a-20250724"
       };
       internals.overrideHookState = overrideHookState;
       internals.overrideHookStateDeletePath = overrideHookStateDeletePath;
@@ -19108,7 +19107,7 @@ __DEV__ &&
     exports.Shape = Shape;
     exports.Surface = Surface;
     exports.Text = Text;
-    exports.version = "19.2.0-www-modern-edac0dde-20250723";
+    exports.version = "19.2.0-www-modern-4f34cc4a-20250724";
     "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
       "function" ===
         typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&