Migrate Carpet Mixin names to mojang mappings

src/main/java/carpet/mixins/ServerFunctionManager_tickMixin.java

@@ -0,0 +1,29 @@
+package carpet.mixins;
+
+import carpet.helpers.TickSpeed;
+import carpet.utils.CarpetProfiler;
+import net.minecraft.server.ServerFunctionManager;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(ServerFunctionManager.class)
+public class ServerFunctionManager_tickMixin
+{
+    CarpetProfiler.ProfilerToken currentSection;
+
+    @Inject(method = "tick", at = @At("HEAD"), cancellable = true)
+    private void beforeDatapacks(CallbackInfo ci)
+    {
+    	if (!TickSpeed.process_entities) ci.cancel();
+    	else
+        currentSection = CarpetProfiler.start_section(null, "Datapacks", CarpetProfiler.TYPE.GENERAL);
+    }
+
+    @Inject(method = "tick", at = @At("RETURN"))
+    private void afterDatapacks(CallbackInfo ci)
+    {
+        CarpetProfiler.end_current_section(currentSection);
+    }
+}