Problem: Converting an object with a pathologically-deep prototype chain
to a primitive was segfaulting.
Cause: Object::internal_get implements [[Get]] by recursing into the
prototype’s [[Get]] (parent->internal_get) when the property isn’t an
own property. For a sufficiently deep prototype chain, that C++
recursion exhausts the native stack, and segfaults. The bytecode
interpreter’s call-stack limit doesn’t cover this native recursion.
Fix: Before recursing into the prototype in Object::internal_get, check
VM::did_reach_stack_space_limit(), and throw a CallStackSizeExceeded
InternalError — the same way the interpreter and other recursive runtime
operations guard the native stack. The deep-chain get now throws a
catchable call-stack-size-exceeded error, rather than crashing.
Fixes https://github.com/LadybirdBrowser/ladybird/issues/3584
d7c08964cb