[Feature] Add visitor functions for new types

[DaniPopes]

Component

syn-solidity

Describe the feature you would like

Add new visitor functions and implementations for the new types added in #199.

Our visitors follow the syn model: https://github.com/dtolnay/syn/blob/master/src/gen/visit.rs

Complete list of the new types added in #199:

• expr

  • ArgList
  • ArgListImpl
  • BinOp
  • Expr
  • ExprArray
  • ExprBinary
  • ExprCall
  • ExprCallOptions
  • ExprDelete
  • ExprIndex
  • ExprMember
  • ExprNew
  • ExprPayable
  • ExprPostfix
  • ExprTernary
  • ExprTuple
  • ExprTypeCall
  • ExprUnary
  • NamedArg
  • NamedArgList
  • PostUnOp
  • UnOp

• lit

  • HexStr
  • Lit
  • LitDenominated
  • LitHexStr
  • LitNumber
  • LitStr
  • LitUnicodeStr
  • SubDenomination
  • UnicodeStr

• stmt

  • AssemblyFlags
  • Block
  • CatchClause
  • ForInitStmt
  • Stmt
  • StmtAssembly
  • StmtBreak
  • StmtContinue
  • StmtDoWhile
  • StmtEmit
  • StmtExpr
  • StmtFor
  • StmtIf
  • StmtReturn
  • StmtRevert
  • StmtTry
  • StmtVarDecl
  • StmtWhile
  • UncheckedBlock
  • VarDeclDecl
  • VarDeclTuple

#268:

• yul
  • WalrusToken
  • YulBlock
  • YulCaseBranch
  • YulEVMBuiltIn
  • YulExpr
  • YulFnCall
  • YulFor
  • YulFunctionDef
  • YulIdent
  • YulIf
  • YulPath
  • YulReturns
  • YulStmt
  • YulSwitch
  • YulSwitchDefault
  • YulVarAssign
  • YulVarDecl

Additional context

No response