fix(php-shim): resolve duplicate definitions and compile errors

- Remove duplicate function/constant definitions that were added during
  porting (strpos, str_contains, str_starts_with, is_scalar, strlen,
  substr, strtoupper, str_replace, sprintf, array_keys, str_ends_with,
  is_int, array_values, is_object, is_numeric, PHP_EOL,
  FILTER_VALIDATE_EMAIL, PHP_VERSION_ID)
- Replace old spl_autoload_register/unregister (PhpMixed args) with
  typed Box<dyn Fn> versions
- Replace old array_pop/array_shift/array_unshift/array_splice with
  generic/correctly-typed versions
- Replace old trim(chars: &str) with trim(chars: Option<&str>)
- Rename array_slice(PhpMixed) to array_slice_mixed to coexist with
  the typed array_slice<V>(IndexMap<String, V>) version
- Fix chdir return type Result<()> -> anyhow::Result<()>
- Add anyhow dependency to shirabe-php-shim

0 files changed, 0 insertions, 0 deletions