Migrate Carpet Mixin names to mojang mappings

src/main/java/carpet/mixins/ChunkAccess_warningsMixin.java

@@ -0,0 +1,21 @@
+package carpet.mixins;
+
+import carpet.CarpetSettings;
+import net.minecraft.core.BlockPos;
+import net.minecraft.world.level.chunk.ChunkAccess;
+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(ChunkAccess.class)
+public abstract class ChunkAccess_warningsMixin
+{
+    // failed to mixin into interface. need to mixin in two places that uses it
+    @Inject(method = "markPosForPostprocessing(Lnet/minecraft/core/BlockPos;)V",
+        at =@At("HEAD"), cancellable = true)
+    private void squashWarnings(BlockPos blockPos_1, CallbackInfo ci)
+    {
+        if (CarpetSettings.skipGenerationChecks.get()) ci.cancel();
+    }
+}