not running the class from metro loader module

```
`
C:\Users\hp\Desktop\chatApplicationTest\3\node_modules\metro-config\src\defaults\blacklist.js:34
return new RegExp(
^

SyntaxError: Invalid regular expression: /(.*\\__fixtures__\\.*|node_modules[\\\]react[\\\]dist[\\\].*|website\\node_modules\\.*|heapCapture\\bundle\.js|.*\\__tests__\\.*)$/: Unterminated character class
at new RegExp ()
at blacklist (C:\Users\hp\Desktop\chatApplicationTest\3\node_modules\metro-config\src\defaults\blacklist.js:34:10)
at getBlacklistRE (C:\Users\hp\Desktop\chatApplicationTest\3\node_modules\react-native\local-cli\util\Config.js:56:10)
at Object. (C:\Users\hp\Desktop\chatApplicationTest\3\node_modules\react-native\local-cli\util\Config.js:71:20)
at Module._compile (internal/modules/cjs/loader.js:1158:30)
at Module._compile (C:\Users\hp\Desktop\chatApplicationTest\3\node_modules\pirates\lib\index.js:99:24)
at Module._extensions..js (internal/modules/cjs/loader.js:1178:10)
at Object.newLoader [as .js] (C:\Users\hp\Desktop\chatApplicationTest\3\node_modules\pirates\lib\index.js:104:7)
at Module.load (internal/modules/cjs/loader.js:1002:32)
at Function.Module._load (internal/modules/cjs/loader.js:901:14)
`
```

solve this issue its important

Start with node_modules/metro-config/src/defaults/blacklist.js at line 34, then trace how react-native/local-cli/util/Config.js calls blacklist through getBlacklistRE. Reproduce the class launch and confirm that the regular expression can be constructed without the reported SyntaxError.

Written by the indexing model from the issue text.