`acc` was used as an index of the receiver (if positive), or a flag for
methods implemented in C. We replace `regs[ci->acc]` by `ci[1].stack[0]`.
And renamed `acc` (originally meant accumulator position) to `cci`
(means callinfo for C implemented method).

The pool specified by `OP_STRING` (and `OP_SYMBOL`) should represent a
string, so that `IREP_TT_NFLAG` should be zero.

It generates a symbol by interning from the pool string.

When parsing scripts frequent scans could cost too much.

build(deps): bump github/super-linter from 4.7.2 to 4.7.3

Bumps [github/super-linter](https://github.com/github/super-linter) from 4.7.2 to 4.7.3.
- [Release notes](https://github.com/github/super-linter/releases)
- [Changelog](https://github.com/github/super-linter/blob/master/docs/release-process.md)
- [Commits](https://github.com/github/super-linter/compare/v4.7.2...v4.7.3)

---
updated-dependencies:
- dependency-name: github/super-linter
  dependency-type: direct:production
  update-type: version-update:semver-patch
...
Signed-off-by: dependabot[bot] <support@github.com>

- `MRB_USE_ETEXT_RO_DATA_P`: use `etext` and `edata`
- `MRB_NO_DEFAULT_RO_DATA_P`: not use the default `mrb_ro_data_p()`

`mrb_ro_data_p()` is available anyway.

build(deps): bump github/super-linter from 4.7.1 to 4.7.2

Bumps [github/super-linter](https://github.com/github/super-linter) from 4.7.1 to 4.7.2.
- [Release notes](https://github.com/github/super-linter/releases)
- [Changelog](https://github.com/github/super-linter/blob/master/docs/release-process.md)
- [Commits](https://github.com/github/super-linter/compare/v4.7.1...v4.7.2)

---
updated-dependencies:
- dependency-name: github/super-linter
  dependency-type: direct:production
  update-type: version-update:semver-patch
...
Signed-off-by: dependabot[bot] <support@github.com>

Consistent naming: `integer` to represent integer packed in `mrb_value`
instead of `int`.

Consistent naming: `integer` to represent integer packed in `mrb_value`
instead of `inum`.

`eval` would have crashed in formatting.

It should be lexx than `UINT16_MAX`. If you don't check here, the parser
would raise an exception.

- remove `mrb_jmpbuf` from `codegen_scope`
- unify exception handling of `mrb_state` and `codegen_scope`

- remove `mrb_jmpbuf` from `truct mrb_parser_state`
- unify exception handling of `mrb_state` and `mrb_parser_state`.

Because the current behavior of `__method__` is equivalent to `__callee__`.

Example:

  # example.rb
  def src
    __send__(ARGV[0])
  end
  alias dst src
  %w[src dst].each {|n| puts "call #{n} => #{__send__(n).inspect}"}

  Ruby:

    $ ruby example.rb __method__
    call src => :src
    call dst => :src

    $ ruby example.rb __callee__
    call src => :src
    call dst => :dst

  mruby:

    $ mruby example.rb __method__
    call src => :src
    call dst => :dst

Otherwise `target_class` can be lost when it differs from `proc`'s
`target_class`, e.g. when called from `instance_eval`.

Also we should not pass `target_class` to `MRB_OBJ_ALLOC` since it
checks instance type from the class, and `target_class` may not have
proper information. ref #5272

build(deps): bump github/super-linter from 4.6.3 to 4.7.1

Bumps [github/super-linter](https://github.com/github/super-linter) from 4.6.3 to 4.7.1.
- [Release notes](https://github.com/github/super-linter/releases)
- [Changelog](https://github.com/github/super-linter/blob/master/docs/release-process.md)
- [Commits](https://github.com/github/super-linter/compare/v4.6.3...v4.7.1)

---
updated-dependencies:
- dependency-name: github/super-linter
  dependency-type: direct:production
  update-type: version-update:semver-minor
...
Signed-off-by: dependabot[bot] <support@github.com>