Remove unused FabricComponents mapping

packages/react-native/ReactAndroid/api/ReactAndroid.api

@@ -2672,11 +2672,6 @@ public final class com/facebook/react/fabric/EmptyReactNativeConfig : com/facebo
 	public fun getString (Ljava/lang/String;)Ljava/lang/String;
 }
 
-public final class com/facebook/react/fabric/FabricComponents {
-	public static final field INSTANCE Lcom/facebook/react/fabric/FabricComponents;
-	public static final fun getFabricComponentName (Ljava/lang/String;)Ljava/lang/String;
-}
-
 public final class com/facebook/react/fabric/FabricSoLoader {
 	public static final field INSTANCE Lcom/facebook/react/fabric/FabricSoLoader;
 	public static final fun staticInit ()V

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/fabric/mounting/mountitems/FabricNameComponentMapping.kt

@@ -7,12 +7,7 @@
 
 package com.facebook.react.fabric.mounting.mountitems
 
-/**
- * Utility class for Fabric components, this will be removed
- *
- * TODO T97384889: remove this class when the component names are unified between JS - Android -
- * iOS - C++
- */
+/** Utility class for Fabric components, this will be removed */
 internal object FabricNameComponentMapping {
   private val componentNames: Map<String, String> =
       mapOf(
@@ -23,7 +18,7 @@ internal object FabricNameComponentMapping {
           "Slider" to "RCTSlider",
           "ModalHostView" to "RCTModalHostView",
           "Paragraph" to "RCTText",
-          "Text" to "RCText",
+          "Text" to "RCTText",
           "RawText" to "RCTRawText",
           "ActivityIndicatorView" to "AndroidProgressBar",
           "ShimmeringView" to "RKShimmeringView",
@@ -39,7 +34,6 @@ internal object FabricNameComponentMapping {
   /** @return the name of component in the Fabric environment */
   @JvmStatic
   fun getFabricComponentName(componentName: String): String {
-    val component = componentNames[componentName]
-    return component ?: componentName
+    return componentNames[componentName] ?: componentName
   }
 }

packages/react-native/ReactCommon/react/renderer/mounting/Differentiator.cpp

@@ -12,6 +12,7 @@
 #include <react/featureflags/ReactNativeFeatureFlags.h>
 #include <react/renderer/core/LayoutableShadowNode.h>
 #include <algorithm>
+
 #include "ShadowView.h"
 
 #ifdef DEBUG_LOGS_DIFFER

packages/react-native/ReactCommon/react/renderer/mounting/MountingCoordinator.cpp

@@ -6,19 +6,18 @@
  */
 
 #include "MountingCoordinator.h"
+
+#include <cxxreact/SystraceSection.h>
+#include <react/debug/react_native_assert.h>
+#include <react/renderer/mounting/ShadowViewMutation.h>
+#include <condition_variable>
 #include "updateMountedFlag.h"
 
 #ifdef RN_SHADOW_TREE_INTROSPECTION
 #include <glog/logging.h>
 #include <sstream>
 #endif
 
-#include <condition_variable>
-
-#include <cxxreact/SystraceSection.h>
-#include <react/debug/react_native_assert.h>
-#include <react/renderer/mounting/ShadowViewMutation.h>
-
 namespace facebook::react {
 
 MountingCoordinator::MountingCoordinator(const ShadowTreeRevision& baseRevision)
@@ -104,6 +103,9 @@ std::optional<MountingTransaction> MountingCoordinator::pullTransaction(
   }
 
   // Override case
+#ifdef RN_SHADOW_TREE_INTROSPECTION
+  bool didOverridePullTransaction = false;
+#endif
   for (const auto& delegate : mountingOverrideDelegates_) {
     auto mountingOverrideDelegate = delegate.lock();
     auto shouldOverridePullTransaction = mountingOverrideDelegate &&
@@ -130,6 +132,9 @@ std::optional<MountingTransaction> MountingCoordinator::pullTransaction(
 
       transaction = mountingOverrideDelegate->pullTransaction(
           surfaceId_, number_, telemetry, std::move(mutations));
+#ifdef RN_SHADOW_TREE_INTROSPECTION
+      didOverridePullTransaction = true;
+#endif
     }
   }
 
@@ -148,7 +153,7 @@ std::optional<MountingTransaction> MountingCoordinator::pullTransaction(
     // If the transaction was overridden, we don't have a model of the shadow
     // tree therefore we cannot validate the validity of the mutation
     // instructions.
-    if (!shouldOverridePullTransaction && lastRevision_.has_value()) {
+    if (!didOverridePullTransaction && lastRevision_.has_value()) {
       auto stubViewTree = buildStubViewTreeWithoutUsingDifferentiator(
           *lastRevision_->rootShadowNode);
 

packages/react-native/ReactCommon/react/renderer/mounting/MountingCoordinator.h

@@ -17,7 +17,6 @@
 #include <react/renderer/mounting/MountingTransaction.h>
 #include <react/renderer/mounting/ShadowTreeRevision.h>
 #include <react/renderer/mounting/TelemetryController.h>
-#include "ShadowTreeRevision.h"
 
 #ifdef RN_SHADOW_TREE_INTROSPECTION
 #include <react/renderer/mounting/stubs/stubs.h>

packages/react-native/ReactCommon/react/renderer/mounting/stubs/StubViewTree.cpp

@@ -257,9 +257,9 @@ void StubViewTree::mutate(const ShadowViewMutationList& mutations) {
   google::FlushLogFiles(google::GLOG_INFO);
 }
 
-std::ostream& StubViewTree::dumpTags(std::ostream& stream) {
+std::ostream& StubViewTree::dumpTags(std::ostream& stream) const {
   for (const auto& pair : registry_) {
-    auto& stubView = *registry_.at(pair.first);
+    auto& stubView = *pair.second;
     stream << "[" << stubView.tag << "]##"
            << std::hash<ShadowView>{}((ShadowView)stubView) << " ";
   }
@@ -273,10 +273,10 @@ bool operator==(const StubViewTree& lhs, const StubViewTree& rhs) {
                  << lhs.registry_.size() << " RHS: " << rhs.registry_.size();
 
       LOG(ERROR) << "Tags in LHS: ";
-      lhs.dumpTagsHash(LOG(ERROR));
+      lhs.dumpTags(LOG(ERROR));
 
       LOG(ERROR) << "Tags in RHS: ";
-      rhs.dumpTagsHash(LOG(ERROR));
+      rhs.dumpTags(LOG(ERROR));
     });
 
     return false;

packages/react-native/ReactCommon/react/renderer/mounting/stubs/StubViewTree.h

@@ -41,7 +41,7 @@ class StubViewTree {
   friend bool operator==(const StubViewTree& lhs, const StubViewTree& rhs);
   friend bool operator!=(const StubViewTree& lhs, const StubViewTree& rhs);
 
-  std::ostream& dumpTags(std::ostream& stream);
+  std::ostream& dumpTags(std::ostream& stream) const;
 
   bool hasTag(Tag tag) const {
     return registry_.find(tag) != registry_.end();

packages/react-native/ReactCommon/react/renderer/mounting/stubs/stubs.h

@@ -8,8 +8,8 @@
 #pragma once
 
 #include <react/renderer/core/ShadowNode.h>
-#include "StubView.h"
-#include "StubViewTree.h"
+#include <react/renderer/mounting/stubs/StubView.h>
+#include <react/renderer/mounting/stubs/StubViewTree.h>
 
 namespace facebook::react {
 

packages/react-native/ReactCommon/react/renderer/scheduler/Scheduler.cpp

@@ -22,11 +22,6 @@
 #include <react/renderer/uimanager/UIManager.h>
 #include <react/renderer/uimanager/UIManagerBinding.h>
 
-#ifdef RN_SHADOW_TREE_INTROSPECTION
-#include <react/renderer/mounting/stubs.h>
-#include <iostream>
-#endif
-
 namespace facebook::react {
 
 Scheduler::Scheduler(