Add name conversion functionallity to CName

[takezoe]

• Refactored existing code
  • Not use return
  • Avoid cast in CName#equals()
  • Use HashMap instead of WeakHashMap in Scala.js
• Added name conversions from natural name
  • snakeCase
  • dashCase
  • upperCamelCase
  • lowerCamelCase

[codecov]

Codecov Report

Merging #360 into master will decrease coverage by 83.07%.
The diff coverage is n/a.

@@            Coverage Diff            @@
##           master   #360       +/-   ##
=========================================
- Coverage   83.07%     0%   -83.08%     
=========================================
  Files         156     56      -100     
  Lines        6010    108     -5902     
  Branches      595      8      -587     
=========================================
- Hits         4993      0     -4993     
+ Misses       1017    108      -909

Impacted Files	Coverage Δ
.../scala/wvlet/airframe/metrics/TimeWindowUnit.scala	0% <0%> (-100%)	⬇️
...g/shared/src/main/scala/wvlet/log/LogSupport.scala	0% <0%> (-100%)	⬇️
...og/jvm/src/main/scala/wvlet/log/LoggerMXBean.scala	0% <0%> (-100%)	⬇️
...rc/main/scala/wvlet/airframe/metrics/package.scala	0% <0%> (-100%)	⬇️
...log/shared/src/main/scala/wvlet/log/LogLevel.scala	0% <0%> (-100%)	⬇️
...og/shared/src/main/scala/wvlet/log/LogRecord.scala	0% <0%> (-100%)	⬇️
...frame-log/jvm/src/main/scala/wvlet/log/Guard.scala	0% <0%> (-100%)	⬇️
...d/src/main/scala/wvlet/airframe/AirframeSpec.scala	0% <0%> (-100%)	⬇️
...ala/wvlet/airframe/msgpack/spi/MessageFormat.scala	0% <0%> (-100%)	⬇️
...c/main/scala/wvlet/airframe/msgpack/spi/Code.scala	0% <0%> (-100%)	⬇️
... and 139 more

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[codecov]

Codecov Report

Merging #360 into master will increase coverage by 0.01%.
The diff coverage is 82.35%.

@@            Coverage Diff             @@
##           master     #360      +/-   ##
==========================================
+ Coverage   83.07%   83.09%   +0.01%     
==========================================
  Files         156      156              
  Lines        6010     6011       +1     
  Branches      595      575      -20     
==========================================
+ Hits         4993     4995       +2     
+ Misses       1017     1016       -1

Impacted Files	Coverage Δ
...rc/main/scala/wvlet/airframe/surface/package.scala	0% <0%> (ø)	⬆️
.../src/main/scala/wvlet/airframe/surface/CName.scala	80.95% <84.84%> (+2.9%)	⬆️

---

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[xerial]

@takezoe I think we should use a regular HashMap for Scala.js. For example by adding Compat.newWeakHashMap = ...

[takezoe]

@xerial Got it. Thanks for your advise!

[xerial]

ok. LGTM. It’s OK to merge this by yourself as a committer :)