Keep the other types, which not having setter macros for ripper.

Introduce Universal Parser mode for the parser.
This commit includes these changes:

* Introduce `UNIVERSAL_PARSER` macro. All of CRuby related functions
  are passed via `struct rb_parser_config_struct` when this macro is enabled.
* Add CI task with 'cppflags=-DUNIVERSAL_PARSER' for ubuntu.

Before:

```
Reducing stack by rule 639 (line 5062):
   $1 = token "integer literal" (1.0-1.1: 1)
-> $$ = nterm simple_numeric (1.0-1.1: )
```

After:

```
Reducing stack by rule 641 (line 5078):
   $1 = token "integer literal" (1.0-1.1: 1)
-> $$ = nterm simple_numeric (1.0-1.1: NODE_LIT)
```

`"<*>"` is supported by Bison 2.3b (2008-05-27) or later.
https://git.savannah.gnu.org/cgit/bison.git/commit/?id=12e3584054c16ab255672c07af0ffc7bb220e8bc

Therefore developers need to install Bison 2.3b+ to build ruby from
source codes if their Bison is older.

Minimum version requirement for Bison is changed to 3.0.

See: https://bugs.ruby-lang.org/issues/19068 [Feature #19068]

Use `"\n"` and `IO#fileno` instead of `$/` and `$.` respectively.
[Feature #14240]

I noticed that some files in rubygems were executable, and I could think
of no reason why they should be.

In general, I think ruby files should never have the executable bit set
unless they include a shebang, so I run the following command over the
whole repo:

```bash
find . -name '*.rb' -type f -executable -exec bash -c 'grep -L "^#!" $1 || chmod -x $1' _ {} \;
```

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63669 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

I think that they are not used.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61964 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

It was replaced with `/*% ripper[brace]: ... %*/`

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61954 b2dd03c8-39d4-4d8f-98ff-823fe69b080e