Rollup merge of #75705 - denisvasilik:intra-doc-links-intrinsics, r=jyn514

Move to intra-doc links for /library/core/src/intrinsics.rs

Helps with #75080.

@rustbot modify labels: T-doc, A-intra-doc-links, T-rustdoc

Known issues:

* The following f32 and f64 primitive methods cannot be resolved:

    f32/f64::powi
    f32/f64::sqrt
    f32/f64::sin
    f32/f64::cos
    f32/f64::powf
    f32/f64::exp
    f32/f64::exp2
    f32/f64::ln
    f32/f64::log2
    f32/f64::log10
    f32/f64::mul_add
    f32/f64::abs
    f32/f64::copysign
    f32/f64::floor
    f32/f64::ceil
    f32/f64::trunc
    f32/f64::round

* Links from core to std:

    [`std::pointer::*`]
    [`std::process::abort`]
    [`from_raw_parts`]
    [`Vec::append`]

* Links with anchors?

	I provided a separate commit that replaced links with anchors by intra-doc links.
	Here the anchor location information gets lost, so its questionable whether to
	actually replace those links.