use std::string inside JSX::string class
add WhileStatementEmitter and DoWhileStatementEmitter
add ClassExpressionEmitter
add FusedAssignmentEmitter
Add BreakStatmentEmitter and ContinueStatementEmitter
add test-cpp command
add LogicalExpressionEmitter
add ConditionalExpressionEmitter
add switch statement emitter
add Array.of
Array.of should return a pointer
add boolean and integer literal emitters
add shiftexpressionemitter
add arrayliteralexpression emitter
add ArrayExpressionEmitter