Extends the @_init guard to def_method so that an ERB object created
via Marshal.load (which bypasses initialize) raises ArgumentError
instead of evaluating arbitrary source. def_module and def_class both
delegate to def_method and are covered by the same check.

Co-authored-by: Tristan Madani <TristanInSec@gmail.com>

Rather than overwriting the predicate method dynamically.

Fix [Bug #21880](https://bugs.ruby-lang.org/issues/21880).

https://github.com/ruby/pstore/commit/b2e474e619

https://github.com/ruby/pstore/commit/b563c4d354

	[PATCH] marshal.c: properly freeze linked strings

	[Bug #21961]

This reverts commit 83637aea6ea726f7fc4c17e56ac60c289e2d98db.

	[Bug #21819] Data objects without members should also be frozen

	[Bug #21814] Fix negative bignum modulo

	If modulo is zero, do not  apply bias even if the divisor is zero.
	`BIGNUM_POSITIVE_P` is true even on bignum zero.

	[PATCH] Fix refinement modification of method visibility in superclass

	Previously, this didn't work correctly, resulting in a
	SystemStackError. This fixes the issue by finding the related
	superclass method entry, and updating the orig_me in the
	refinement method to point to the superclass method.

	Fixes [Bug #21446]

	[PATCH] Don't use non blocking pipes for RUBY_CRASH_REPORT

	[Bug #21703]

	RUBY_CRASH_REPORT does not work in some cases when shelling out on Linux.
	For example, given the following shell script dump.sh:

	    #!/usr/bin/env bash
	    cat > /tmp/crash

	And we see it fails like this:

	    $ RUBY_CRASH_REPORT="|dump.sh" ruby -rfiddle -e "Fiddle::Pointer.new(1, 10)[0]"
	    cat: -: Resource temporarily unavailable