[LVI] Split solveBlockValueConstantRange into two [NFC]

This function handled both unary and binary operators.  Cloning and specializing leads to much easier to follow code with minimal duplicatation.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@267438 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed