Description

While trying to generate Ballerina types from a valid JSON payload with special character field names, certain field names in the JSON result in invalid Ballerina identifiers.

For example, this part is extracted from a GitHub issue event payload,

{
  "total_count": 0,
  "+1": 0,
  "-1": 0
}

When generating a Ballerina record type, the output looks like this,

type Reactions record {|
    int total_count;
    int +1;
    int -1;
|};

However, +1 and -1 are valid JSON keys, even though they are invalid Ballerina identifiers

Steps to Reproduce

Use the given sample payload

Version

1.2.25080717

Environment Details (with versions)

No response