Serialization and deserialization of nested enums would not match.

[vikalpacn]

MOTIVATION

There was a small bug where the serialization and deserialization of nested
enums would not match, so a fork created of diem/bcs in the Zefchain org, applied the fix, and
then released v0.1.4 of bcs to crates.io

The fixes done in Zefchain branch, are incorporated in forked repo of Diem bcs and then merged with diem/diem.

-fixes are applied in diem bcs version 0.1.3 regarding the matching of serialization and de-serialization
of Nested enums and updating it to version 0.1.4.

-Then, building diem bcs version 0.1.4.

-referring diem bcs version 0.1.4 to diem code base.

DESCRIPTION

The fixes done in Zefchain branch, are incorporated in forked repo of Diem bcs and then merged with diem/diem.

1. First step is to apply the fixes in diem bcs version 0.1.3 regarding the matching of serialization and de-serialization
   of Nested enums and updating it to version 0.1.4.

2. Then, building diem bcs version 0.1.4 and performing unit testing for fn test_recursion_limit() :

• cargo test --package bcs --test serde -- test_recursion_limit --exact --nocapture

3. After successful build and testing, referring diem bcs version 0.1.4 to diem code base.

4. To refer, first making changes in bcs of cargo.toml file of a single module (Applying path of diem bcs- )

   • then,
   1. Build- cargo build
   2. Test- cargo test -p "Name of a particular module"

5.After successful build of a single module, further applying the changes in all the modules by giving address of diem bcs in cargo.toml file.

6. Then,

• cargo build diem- cargo build
• Smoke test- cargo x test --package smoke-test -- --test-threads 1
• integration test- cargo xtest -p jsonrpc-integration-tests

[vikalpacn]

/canary

[KoushikGavini]

Lets update description and test plan as discussed.

[KoushikGavini]

Lets fix Lint check

[vikalpacn]

/canary

[vikalpacn]

/canary