[PATCH] D103094: [analyzer] Implemented RangeSet::Factory::castTo function to perform promotions, truncations and conversions.

[Denys Petrov via Phabricator via cfe-commits]

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Handle casts for ranges working similarly to APSIntType::apply function but for the whole range set. Support promotions, truncations and conversions.
Example:
Promotion: `char [0, 42] -> short [0, 42] -> int [0, 42] -> llong [0, 42]`
Truncation: `llong [4295033088, 4295033130] -> int [65792, 65834] -> short [256, 298] -> char [0, 42]`
Conversion: `char [-42, 42] -> uint [0, 42]U[4294967254, 4294967295] -> short[-42, 42]`


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D103094

Files:
  clang/include/clang/StaticAnalyzer/Core/PathSensitive/RangedConstraintManager.h
  clang/lib/StaticAnalyzer/Core/RangeConstraintManager.cpp
  clang/unittests/StaticAnalyzer/RangeSetTest.cpp

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