[clang] Static analyzer crash with just core checkers

[omern1]

https://gcc.godbolt.org/z/aMnzcs6Eb

// > clang -O0 -Xclang -analyzer-checker=core -Xclang -analyze ./input.cpp

enum class a { b };
char c[sizeof(a)];
struct {
  operator a() { return __builtin_bit_cast(a, c); }
} d;
void e() {
  switch (d)
  case a::b:
}

[llvmbot]

@llvm/issue-subscribers-clang-static-analyzer

Author: Nabeel Omer (omern1)

https://gcc.godbolt.org/z/aMnzcs6Eb

// > clang -O0 -Xclang -analyzer-checker=core -Xclang -analyze ./input.cpp

enum class a { b };
char c[sizeof(a)];
struct {
  operator a() { return __builtin_bit_cast(a, c); }
} d;
void e() {
  switch (d)
  case a::b:
}