Add doc aliases for all wasm intrinsics

Recommended in #74372

Author: alexcrichton

crates/core_arch/src/wasm32/atomic.rs

@@ -35,6 +35,7 @@ extern "C" {
 #[inline]
 #[cfg_attr(test, assert_instr(memory.atomic.wait32))]
 #[target_feature(enable = "atomics")]
+#[doc(alias("memory.atomic.wait32"))]
 pub unsafe fn memory_atomic_wait32(ptr: *mut i32, expression: i32, timeout_ns: i64) -> i32 {
     llvm_atomic_wait_i32(ptr, expression, timeout_ns)
 }
@@ -64,6 +65,7 @@ pub unsafe fn memory_atomic_wait32(ptr: *mut i32, expression: i32, timeout_ns: i
 #[inline]
 #[cfg_attr(test, assert_instr(memory.atomic.wait64))]
 #[target_feature(enable = "atomics")]
+#[doc(alias("memory.atomic.wait64"))]
 pub unsafe fn memory_atomic_wait64(ptr: *mut i64, expression: i64, timeout_ns: i64) -> i32 {
     llvm_atomic_wait_i64(ptr, expression, timeout_ns)
 }
@@ -85,6 +87,7 @@ pub unsafe fn memory_atomic_wait64(ptr: *mut i64, expression: i64, timeout_ns: i
 #[inline]
 #[cfg_attr(test, assert_instr(memory.atomic.notify))]
 #[target_feature(enable = "atomics")]
+#[doc(alias("memory.atomic.notify"))]
 pub unsafe fn memory_atomic_notify(ptr: *mut i32, waiters: u32) -> u32 {
     llvm_atomic_notify(ptr, waiters as i32) as u32
 }

crates/core_arch/src/wasm32/memory.rs

@@ -24,6 +24,7 @@ extern "C" {
 #[cfg_attr(test, assert_instr("memory.size", MEM = 0))]
 #[rustc_legacy_const_generics(0)]
 #[stable(feature = "simd_wasm32", since = "1.33.0")]
+#[doc(alias("memory.size"))]
 pub fn memory_size<const MEM: u32>() -> usize {
     static_assert!(MEM: u32 where MEM == 0);
     unsafe { llvm_memory_size(MEM) as usize }
@@ -48,6 +49,7 @@ pub fn memory_size<const MEM: u32>() -> usize {
 #[cfg_attr(test, assert_instr("memory.grow", MEM = 0))]
 #[rustc_legacy_const_generics(0)]
 #[stable(feature = "simd_wasm32", since = "1.33.0")]
+#[doc(alias("memory.grow"))]
 pub fn memory_grow<const MEM: u32>(delta: usize) -> usize {
     unsafe {
         static_assert!(MEM: u32 where MEM == 0);