libphobos: Merge upstream phobos 99003a75a

Fixes hasLength unittest to pass on X32.

References: PR d/94609

Reviewed-on: https://github.com/dlang/phobos/pull/7448

libphobos/src/MERGE

-fb4f6a713f5b78742f93e072cff6a6c4ecf9323d
+99003a75a883d4ae28b276763f4d1f2a360cf1dd
 
 The first line of this file holds the git revision number of the last
 merge done from the dlang/phobos repository.

libphobos/src/std/range/primitives.d

@@ -1416,12 +1416,12 @@ unittest
     struct A { ulong length; }
     struct B { @property uint length() { return 0; } }
 
-    version (X86)
+    static if (is(size_t == uint))
     {
         static assert(!hasLength!(A));
         static assert(hasLength!(B));
     }
-    else version(X86_64)
+    else static if (is(size_t == ulong))
     {
         static assert(hasLength!(A));
         static assert(!hasLength!(B));