operation-ids-path option is broken (Swift)

[kompfner]

When passed in an --operation-ids-path, apollo-codegen should generate a file mapping between operation ids and operation sources (including dependent fragments). This functionality was added as part of #147.

This functionality is now broken. Running apollo-codegen with the --operation-ids-path argument yields TypeError: path must be a string or Buffer.

There are two problems, as far as I can tell. In writeOperationIdsMap in generate.ts:

1. context no longer contains operationIdsPath
2. Each operation in context.operations no longer contains operationId or sourceWithFragments

My guess is that this broke as a result of the changes in #228.

[martijnwalraven]

I'm sorry the compiler rewrite broke the --operation-ids-path feature, but since you are the only one using it, and you know what is needed, could you open a PR to fix this?

[inakianduaga]

I can confirm this is still broken

[JustinDSN]

I put up a PR to address this issue.