Sanitizer fix: shift exponent too large

lib/vf_common.cpp:115:96: runtime error: shift exponent 18446744073709550144 is too large for 64-bit type 'long long unsigned int'
lib/vf_common.cpp:116:47: runtime error: shift exponent 1919 is too large for 64-bit type 'long long unsigned int'

Author: heshpdx

lib/vf_common.cpp

@@ -38,6 +38,7 @@
 #include <limits>
 #include <utility>
 #include <vector>
+#include <algorithm>
 
 namespace ValueFlow
 {
@@ -101,6 +102,9 @@ namespace ValueFlow
         if (value_size == 0)
             return value;
 
+        // sizeof(long long) = 8
+        value_size = std::min(sizeof(long long), value_size);
+
         const MathLib::biguint unsignedMaxValue = std::numeric_limits<MathLib::biguint>::max() >> ((sizeof(unsignedMaxValue) - value_size) * 8);
         const MathLib::biguint signBit = 1ULL << (value_size * 8 - 1);
         value &= unsignedMaxValue;