Suppress gcc 15 unterminated-string-initialization warnings

	Separate `__has_attribute` from `defined(__has_attribute)`

	Fix Visual C warnings:
	```
	regenc.h(121): warning C4067: unexpected tokens following preprocessor directive - expected a newline
	```

	Cast up `int` instruction code to `VALUE`

	Fix Visual C warnings:
	```
	iseq.c(3793): warning C4312: 'type cast': conversion from 'int' to 'void *' of greater size
	iseq.c(3794): warning C4312: 'type cast': conversion from 'int' to 'void *' of greater size
	```

	Do not let files depend on a phony target

	Detect `clock_gettime` and `clock_getres` for winpthreads

	Fix redefinition of `clock_gettime` and `clock_getres`

	winpthreads-git 12.0.0.r720 provides `clock_gettime` and
	`clock_getres` as inline functions.

	digest.so needs ruby/digest.h which is installed by build-ext

	Copy to path with the base name

Revert "[Bug #20965] Define `it` like an ordinary argument (#12398)"

Reverts ruby/ruby#12398 as per https://bugs.ruby-lang.org/issues/20970#note-6 and https://bugs.ruby-lang.org/issues/20965#note-7.
We need more time to design the intended behavior, and it's too late for Ruby 3.4.

Also fixes [Bug #20955]

[Feature #20912]

* Add opt_duparray_send insn to skip the allocation on `#include?`

If the method isn't going to modify the array we don't need to copy it.
This avoids the allocation / array copy for things like `[:a, :b].include?(x)`.

This adds a BOP for include? and tracks redefinition for it on Array.

Co-authored-by: Andrew Novoselac <andrew.novoselac@shopify.com>

* YJIT: Implement opt_duparray_send include_p

Co-authored-by: Andrew Novoselac <andrew.novoselac@shopify.com>

* Update opt_newarray_send to support simple forms of include?(arg)

Similar to opt_duparray_send but for non-static arrays.

* YJIT: Implement opt_newarray_send include_p

---------

Co-authored-by: Andrew Novoselac <andrew.novoselac@shopify.com>

Use an enum for the method arg instead of needing to add an id
that doesn't map to an actual method name.

$ ruby --dump=insns -e 'b = "x"; [v].pack("E*", buffer: b)'

before:

```
== disasm: #<ISeq:<main>@-e:1 (1,0)-(1,34)>
local table (size: 1, argc: 0 [opts: 0, rest: -1, post: 0, block: -1, kw: -1@-1, kwrest: -1])
[ 1] b@0
0000 putchilledstring                       "x"                       (   1)[Li]
0002 setlocal_WC_0                          b@0
0004 putself
0005 opt_send_without_block                 <calldata!mid:v, argc:0, FCALL|VCALL|ARGS_SIMPLE>
0007 newarray                               1
0009 putchilledstring                       "E*"
0011 getlocal_WC_0                          b@0
0013 opt_send_without_block                 <calldata!mid:pack, argc:2, kw:[#<Symbol:0x000000000023110c>], KWARG>
0015 leave
```

after:

```
== disasm: #<ISeq:<main>@-e:1 (1,0)-(1,34)>
local table (size: 1, argc: 0 [opts: 0, rest: -1, post: 0, block: -1, kw: -1@-1, kwrest: -1])
[ 1] b@0
0000 putchilledstring                       "x"                       (   1)[Li]
0002 setlocal_WC_0                          b@0
0004 putself
0005 opt_send_without_block                 <calldata!mid:v, argc:0, FCALL|VCALL|ARGS_SIMPLE>
0007 putchilledstring                       "E*"
0009 getlocal                               b@0, 0
0012 opt_newarray_send                      3, 5
0015 leave
```

Run test-bundled-gems-run and test-bundled-gems-spec sequentially.