Compilation: Add AllowInvalidTop flag

[AndrewNolte]

Stacked PRs:

• Analysis: Diag ranges instead of locs for unused vars #1902
• Compilation: Add CheckUninstantiated flag #1901
• ->Compilation: Add AllowInvalidTop flag #1900
• Fix ImplicitNetPortNoDefault false positive due to https://github.com/MikePopoloski/slang/pull/1866 #1903

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View individual changes

Compilation: Add AllowInvalidTop flag

This flag sets error types for unset top level params, allowing for better diagnostics when not in a full design context.

[codecov]

Codecov Report

❌ Patch coverage is 93.33333% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 96.04%. Comparing base (cad88da) to head (15184f5).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
source/ast/symbols/InstanceSymbols.cpp	92.30%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1900      +/-   ##
==========================================
- Coverage   96.04%   96.04%   -0.01%     
==========================================
  Files         247      247              
  Lines       56635    56645      +10     
==========================================
+ Hits        54396    54405       +9     
- Misses       2239     2240       +1     

Files with missing lines	Coverage Δ
include/slang/ast/Compilation.h	100.00% <100.00%> (ø)
include/slang/ast/symbols/InstanceSymbols.h	100.00% <ø> (ø)
source/ast/Compilation.cpp	96.70% <100.00%> (+<0.01%)	⬆️
source/ast/symbols/InstanceSymbols.cpp	96.92% <92.30%> (-0.08%)	⬇️

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[MikePopoloski]

Also need to update Python bindings for the new flag.