[llvm] Fix crash due to un-checked error in LVReaderHandler::handleArchive method (PR #118951)

[Carlos Alberto Enciso via llvm-commits]

CarlosAlbertoEnciso wrote:

@aurelien35 This is the information extracted from my notes.

Source file: `test.cpp`
```
using INTPTR = const int *;
int foo(INTPTR ParamPtr, unsigned ParamUnsigned, bool ParamBool) {
  if (ParamBool) {
    typedef int INTEGER;
    const INTEGER CONSTANT = 7;
    return CONSTANT;
  }
  return ParamUnsigned;
}
```
Command line used to generate the binary files:

`-- Linux`
```
clang -c -w -g -gdwarf-4 -O0 test.cpp -o test-dwarf-clang.o

g++ -c -w -g -O0 test.cpp -o test-dwarf-gcc.o
```

`-- Windows`
```
clang++.exe --target=x86_64-windows -c -w -g -gcodeview test.cpp -o test-codeview-clang.o

cl.exe /nologo /EHsc /Od /Z7 /Fotest-codeview-msvc.o /c test.cpp
cl.exe /nologo /EHsc /Od /Zi /Fotest-codeview-pdb-msvc.o /Fdtest-codeview-pdb-msvc-.pdb /c test.cpp
```


https://github.com/llvm/llvm-project/pull/118951