Sync from upstream llama.cpp repository

tests/run-json-schema-to-grammar.mjs

@@ -0,0 +1,10 @@
+import { readFileSync } from "fs"
+import { SchemaConverter } from "../tools/server/public_legacy/json-schema-to-grammar.mjs"
+
+const [, , file] = process.argv
+const url = `file://${file}`
+let schema = JSON.parse(readFileSync(file, "utf8"));
+const converter = new SchemaConverter({})
+schema = await converter.resolveRefs(schema, url)
+converter.visit(schema, '')
+console.log(converter.formatGrammar())