Add working hash codes to ModMetadataFile and ModMetadataFabricModJson

src/main/java/dev/architectury/loom/metadata/ArchitecturyCommonJson.java

@@ -111,4 +111,14 @@ public final class ArchitecturyCommonJson implements JsonBackedModMetadataFile {
 	public List<String> getMixinConfigs() {
 		return List.of();
 	}
+
+	@Override
+	public boolean equals(Object obj) {
+		return this == obj || obj instanceof ArchitecturyCommonJson acj && acj.json.equals(json);
+	}
+
+	@Override
+	public int hashCode() {
+		return json.hashCode();
+	}
 }

src/main/java/dev/architectury/loom/metadata/QuiltModJson.java

@@ -148,4 +148,14 @@ public final class QuiltModJson implements JsonBackedModMetadataFile {
 		// See https://github.com/QuiltMC/quilt-loader/blob/7da975c7/src/main/java/org/quiltmc/loader/api/ModMetadata.java#L150-L152
 		return json.get(key);
 	}
+
+	@Override
+	public boolean equals(Object obj) {
+		return this == obj || obj instanceof QuiltModJson qmj && qmj.json.equals(json);
+	}
+
+	@Override
+	public int hashCode() {
+		return json.hashCode();
+	}
 }

src/main/java/net/fabricmc/loom/util/fmj/FabricModJson.java

@@ -67,7 +67,7 @@ public abstract sealed class FabricModJson permits FabricModJsonV0, FabricModJso
 	}
 
 	@Override
-	public final int hashCode() {
+	public int hashCode() {
 		return Objects.hash(getId(), getVersion());
 	}
 

src/main/java/net/fabricmc/loom/util/fmj/ModMetadataFabricModJson.java

@@ -122,4 +122,9 @@ public final class ModMetadataFabricModJson extends FabricModJson {
 				.stream()
 				.collect(Collectors.toMap(Function.identity(), path -> ModEnvironment.UNIVERSAL));
 	}
+
+	@Override
+	public int hashCode() {
+		return modMetadata.hashCode();
+	}
 }