[nodejs/node] Broken perf map when newline in RegExp with Node24

### ROOT CAUSE The issue arises because the Node.js 24 perf map does not correctly handle newlines in regular expression symbols. Specifically, the newline character `\n` is not being properly escaped or handled, leading to the symbol being split across multiple lines in the perf map. ### CODE FIX To address this issue, you can escape the newline character in the regular expression symbol. This ensures that the entire symbol is treated as a single line in the perf map. Here is the modified code:

js
// repro.js
const re = new RegExp("HELLO\\nWORLD", "sy");
const str = "HELLO\nWORLD";
for (let i = 0; i < 100_000; i++) {
  re.lastIndex = 0;
  re.exec(str);
}


By replacing `\n` with `\\n`, the newline character is correctly escaped, and the perf map should display the symbol as a single line.