Fix #1370: Establish a copy edge for int2ptr instruction/constantexpr

[yuleisui]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 87.50000% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 68.05%. Comparing base (bc9a08f) to head (6b3e2df).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1410      +/-   ##
==========================================
- Coverage   68.06%   68.05%   -0.01%     
==========================================
  Files         250      250              
  Lines       27770    27771       +1     
==========================================
- Hits        18901    18900       -1     
- Misses       8869     8871       +2     

Files	Coverage Δ
svf-llvm/lib/SVFIRBuilder.cpp	81.72% <100.00%> (+0.03%)	⬆️
svf-llvm/lib/SymbolTableBuilder.cpp	88.92% <100.00%> (+0.03%)	⬆️
svf/include/SVFIR/SVFIR.h	100.00% <100.00%> (ø)
svf/include/SVFIR/SVFStatements.h	88.23% <ø> (ø)
svf/lib/Graphs/ConsG.cpp	65.78% <100.00%> (+0.10%)	⬆️
svf/lib/AE/Svfexe/SVFIR2ItvExeState.cpp	80.04% <50.00%> (-0.26%)	⬇️

... and 1 file with indirect coverage changes