Compiler reworks

[ChAoSUnItY]

Language Code: Yakou

• Followed up Java (An Indonesian island) and Kotlin (An Russian island), in this case, Yakou refers to a mountain pass in Taiwan.

Language

• Kotlin

Lexer

• [x] Rework parsing definitions
  • #56
• [x] Break up greater '>' and lesser '<' tokens' variant type (including double and triple ones)
  • This is for future generic implementation

Parser

• [ ] Fault tolerant
  • Also adopts reworked lexer

Checker

• [ ] Better type binding & function locating design

Emitter

• [ ] Class-based emitter
  • Generating class file based on Item.Class