[stdlib] improve more accessor declarations

Author: glessard

stdlib/public/core/Array.swift

@@ -1744,9 +1744,9 @@ extension Array {
   }
 
   @available(SwiftStdlib 6.2, *)
+  @_alwaysEmitIntoClient
   public var mutableSpan: MutableSpan<Element> {
     @lifetime(&self)
-    @_alwaysEmitIntoClient
     mutating get {
       // _makeMutableAndUnique*() inserts begin_cow_mutation.
       // LifetimeDependence analysis inserts call to end_cow_mutation_addr since we cannot schedule it in the stdlib for mutableSpan property.

stdlib/public/core/ArraySlice.swift

@@ -1301,9 +1301,9 @@ extension ArraySlice {
   }
 
   @available(SwiftStdlib 6.2, *)
+  @_alwaysEmitIntoClient
   public var mutableSpan: MutableSpan<Element> {
     @lifetime(&self)
-    @_alwaysEmitIntoClient
     mutating get {
       // _makeMutableAndUnique*() inserts begin_cow_mutation.
       // LifetimeDependence analysis inserts call to end_cow_mutation_addr since we cannot schedule it in the stdlib for mutableSpan property.

stdlib/public/core/CollectionOfOne.swift

@@ -173,9 +173,9 @@ extension CollectionOfOne {
   }
 
   @available(SwiftStdlib 6.2, *)
+  @_alwaysEmitIntoClient
   public var mutableSpan: MutableSpan<Element> {
     @lifetime(&self)
-    @_alwaysEmitIntoClient
     mutating get {
       let pointer = unsafe UnsafeMutablePointer<Element>(
         Builtin.addressOfBorrow(self)

stdlib/public/core/ContiguousArray.swift

@@ -1243,9 +1243,9 @@ extension ContiguousArray {
   }
 
   @available(SwiftStdlib 6.2, *)
+  @_alwaysEmitIntoClient
   public var mutableSpan: MutableSpan<Element> {
     @lifetime(&self)
-    @_alwaysEmitIntoClient
     mutating get {
       // _makeMutableAndUnique*() inserts begin_cow_mutation.
       // LifetimeDependence analysis inserts call to end_cow_mutation_addr since we cannot schedule it in the stdlib for mutableSpan property.

stdlib/public/core/InlineArray.swift

@@ -472,9 +472,10 @@ extension InlineArray where Element: ~Copyable {
   }
 
   @available(SwiftStdlib 6.2, *)
+  @_alwaysEmitIntoClient
   public var mutableSpan: MutableSpan<Element> {
     @lifetime(&self)
-    @_alwaysEmitIntoClient
+    @_transparent
     mutating get {
       let pointer = unsafe _mutableAddress
       let span = unsafe MutableSpan(_unsafeStart: pointer, count: count)