Needs to be reverted

[espkk]

7877868
This causes quite noticeable performance regression and should be reverted somehow

[espkk]

context:
making copy of FuncInfo (on each event call) triggers copying of vector of LocalVarInfo that leads to multiple heavy allocations on each frame
I workarounded that on my local branch by putting LocalVarInfo into std::shared_ptr, but I'm not satisfied with this approach