using CircleCI now, no need for this file

* gzip the source info to reduce the binary size a little bit
* use a local var, not package var, so the raw bytes can be reclaimed by GC

… type (#505)

…471)

* add test to repro panic
* add guard to prevent nil dereference panic
* fix original source of panic: mishandling of synthetic oneofs

…target needs to install protoc-gen-go (#517)

* Cleanup CI config to use newer Go versions and newer circleci images
* Use newer protoc plugins (separate for normal code vs. gRPC-related code)
* Remove dependency on grpc-go in internal/testprotos by not generating gRPC stubs for that package
* Copy testprotos.TestService into DummyService in grpc sub-package, since we no longer generate gRPC stubs for testprotos
* Update tests to look for DummyService; fix other related errors that fall out of using new protoc grpc plugin

Co-authored-by: bufdev <bufdev-github@buf.build>

…o fix articles in error messages (#520)

- this is (strangely?) a case-insensitive check, just like protoc enforces
- this enforces *default* JSON names don't conflict for proto3 files (even for fields that define a custom JSON name)
- this also adds checks that custom JSON names don't conflict (unlike protoc)
- this will only warn for proto2 files unless the issue is between conflicting *custom* names (JSON mapping was introduced in proto3, so not backwards compatible to fail due to default JSON names in proto2 files)

…ormat (#524)

Co-authored-by: Evan do Carmo <carmo.evan@gmail.com>

…rpreted options (#526)

…529)

Don't be so eager to resort to octal escapes. This makes the output readable for languages that use code points outside the 7-bit ASCII range. It also preserves use of other printable unicode symbols, including emoji.