The field named `js` in the schema causes the Relay compiler to fail when this field is requested in the query

## Problem

The field named `js` in the schema causes the Relay compiler to fail when this field is requested in the query.

## Steps to reproduce

1. Define the following schema:

```
type Query {
hello: String
js: String
}

schema {
query: Query
}
```

2. Define the following query:

```
const query = graphql`
query srcAppQuery {
hello
js
}
`;
```

3. Execute the Relay compiler to generate the query and observe the output in the console.

## Expected Result

The query is generated successfully. Expected output in the console:

```
> bug-relay-compiler-js-field@1.0.0 relay
> relay-compiler

[INFO] [default] compiling...
[INFO] [default] compiled documents: 1 reader, 1 normalization, 1 operation text
[INFO] Compilation completed.
[INFO] Done.
```

## Actual Result

The query generation fails. Actual output in the console:

```
> bug-relay-compiler-js-field@1.0.0 relay
> relay-compiler

[INFO] [default] compiling...
[ERROR] Error: ✖︎ 'js' should be defined on the server schema.

src/index.ts:6:5
5 │ hello
6 │ js
│ ^^
7 │ }

[ERROR] Compilation failed.
[ERROR] Unable to run relay compiler. Error details:
Failed to build:
- Validation errors: 1 error(s) encountered above.
```

## Notes

1. If the `js` field is removed from the definition of `srcAppQuery`, the query is generated successfully (but obviously without the `js` field included).
2. The sample project to reproduce the issue is available at https://github.com/SiarheiBarysenka/bug-relay-compiler-js-field .