Make attrs position-aware

[headius]

This is a proof-of-concept for adding the definition location (from source where attr, attr_reader, attr_accessor or attr_writer was called) into all attr-style methods, to address the missing information reported in #8079.

A benchmark is included, and shows how severely this impacts the creation of attrs, due to the stack walking involved:

[] jruby $ jruby bench/bench_attr_reader.rb 
jruby 10.0.0.0-SNAPSHOT (3.4.0) 2024-04-25 feb5f4c851 OpenJDK 64-Bit Server VM 17.0.5+8 on 17.0.5+8 +jit [arm64-darwin]
Warming up --------------------------------------
         attr_reader    11.853k i/100ms
Calculating -------------------------------------
         attr_reader    128.672k (± 0.5%) i/s -    651.915k in   5.066593s
[] jruby $ (chruby jruby-9.4.6.0 ; jruby bench/bench_attr_reader.rb)
Warming up --------------------------------------
         attr_reader   960.880k i/100ms
Calculating -------------------------------------
         attr_reader      9.701M (± 0.4%) i/s -     49.005M in   5.051463s

Using a specialized call site would make this largely free, similar to how #8170 avoids frame access for block_given? but this example demonstrates one (slow) way to solve the bug.