The headline here is adding a flatbuffer_ts_library rule for generating
typescript code in bazel. This entails some non-trivial other changes,
but ideally none are user-visible.
In particular:
* Added a --ts-flat-file flag that generates a single *_generated.ts
file instead of separate files for each typescript type. This makes
bazel much happier.
* Import the bazel rules_nodejs stuff needed to support building
typescript in bazel
* Move flatbuffers.ts to index.ts because I wasn't sure how to make
bazel comprehend the "main" attribute of the package.json. Happy
to take another stab at figuring that out if really needed.
* Fix another couple keyword escaping spots in typescript...
I'm not seeing the reason why we didn't attempt to support transitive
dependencies for flatbuffer_cc_library, and the current setup makes
having to propagate new dependencies to all of their recursive
dependents obnoxious.
* [idl_parser] Check structs and enums do not clash in a namespace
Uses fully qualified names to check for clashes within a given namespace whether explicitly defined or in the global namespace.
* [idl_parser] Move type name clash check to ParseEnum and ParseDecl
Change point at which parsing error is returned to ensure error is caught more generally. This change means that the error is returned after parsing the entirety of the offending duplicate rather than at the start when parsing it's name.
* [idl_parser] Add single and multi file type name clash tests
Adds a selection of tests for valid single file schemas with types that have the same name but are in different namespaces.
Adds a test for an a valid schema that spans two files with two types that have the same name but are in different namespaces.
Adds a test for an an invalid schema that spans two files with two types that have the same name and are in the same namespace.