[wip] Introduce CastType::Exact instead of reusing Prefix for exact casts

[jswrenn]

---

• 👉 [wip] Introduce CastType::Exact instead of reusing Prefix for exact casts #3717
• 　  Optimize validate_cast_and_convert_metadata #3716
• 　  Fix TryFromBytes::try_read_from* #3712
• 　  Genericize (try_)ref_from_prefix_suffix #3711
• 　  Implement common traits for ReadOnly #3682

Latest Update: v2 — Compare vs v1

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Version	v1	Base
v2	vs v1	vs Base
v1		vs Base

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[codecov-commenter]

Codecov Report

❌ Patch coverage is 96.90722% with 3 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (G463fe47353c89d061e6458fa9c4bd19328a954a8@cc5799d). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
zerocopy/src/lib.rs	0.00%	3 Missing ⚠️

Additional details and impacted files

@@                             Coverage Diff                              @@
##             G463fe47353c89d061e6458fa9c4bd19328a954a8    #3717   +/-   ##
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  Coverage                                             ?   92.67%           
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  Files                                                ?       20           
  Lines                                                ?     6542           
  Branches                                             ?        0           
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  Hits                                                 ?     6063           
  Misses                                               ?      479           
  Partials                                             ?        0           

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