Missing operator delete/delete[] for some allocated objects

Hi.

Looks like there are few places in the Terminal code where I can suspect a memory leaks due to missing operator delete or operator delete[]. These allocation sites can be grouped into following:

• raw operator new without operator delete like this https://github.com/Microsoft/Terminal/blob/master/src/cascadia/TerminalConnection/ConptyConnection.cpp#L191
• allocation by operator new some global object or class member (https://github.com/Microsoft/Terminal/blob/master/src/cascadia/TerminalControl/TermControl.cpp#L281)
• allocation by operator new some memory in a function and return it by raw pointer, which can leak then.

Here is my gist with quite a simple grep foroperator new calls - https://gist.github.com/dreamer-dead/c43248466fc4d445378b4dfba80d8d25

Is this an intentional behaviour or a bug that should be fixed?