feat: assign auto-incremented ids to anonynous functions to identify them in vm trace

[ashddev]

This Pull Request closes #4742

It changes the following:

• Adds an empty anon_debug_id to CodeBlocks.
• Assigns IDs to anonymous function codeblocks when their frame is pushed onto the call stack.
• Displays anonymous function IDs in the compiled output and call frame titles during tracing.

This is my first contribution to Boa, and I’m happy to make any changes based on feedback :)

[github-actions]

Test262 conformance changes

Test result	main count	PR count	difference
Total	52,862	52,862	0
Passed	49,504	49,504	0
Ignored	2,262	2,262	0
Failed	1,096	1,096	0
Panics	0	0	0
Conformance	93.65%	93.65%	0.00%

[jedel1043]

Very nice contribution! We can simplify this a bit more with a thread local counter.

[jedel1043]

I'd say for simplicitly's sake, we can just assign a incremental ID to every CodeBlock on the same thread. We do something very similar in Context:

boa/core/engine/src/context/mod.rs

Lines 46 to 48 in f22ef44

	thread_local! {
	static CANNOT_BLOCK_COUNTER: Cell<u64> = const { Cell::new(0) };
	}

boa/core/engine/src/context/mod.rs

Line 1115 in f22ef44

CANNOT_BLOCK_COUNTER.set(CANNOT_BLOCK_COUNTER.get() + 1);

Since any CodeBlock can be executed by any Context but CodeBlock's cannot be sent between threads, a thread local counter should be enough for this purpose.