Fixed some tests

The IRGen test had wrong offsets for inline String element on tuples kp on 32-bit platforms
The stdlib test had hardcoded offsets (assumed 64-bit host) for tuple kp elements (Memorylayout)

Author: technicated

test/IRGen/keypaths.sil

@@ -212,11 +212,11 @@ sil_vtable C2 {}
 //                  -- instantiable in-line, size 12
 // CHECK-SAME: <i32 0x8000_000c>,
 // -- offset of T.b
-// CHECK-32-SAME: <i32 0x0100_000c>,
+// CHECK-32-SAME: <i32 0x0100_0010>,
 // CHECK-64-SAME: <i32 0x0100_0018>,
 // CHECK: @"symbolic
 // -- tuple element #1 of T.b
-// CHECK-32-SAME: <i32 0x0180_0008> }>
+// CHECK-32-SAME: <i32 0x0180_000c> }>
 // CHECK-64-SAME: <i32 0x0180_0010> }>
 
 // -- %i: Gen<A>.x

test/stdlib/KeyPath.swift

@@ -752,13 +752,13 @@ keyPath.test("offsets") {
   expectEqual(TPLayout.offset(of: \TupleProperties.self), 0)
   expectEqual(TPLayout.offset(of: \TupleProperties.a), 0)
   expectEqual(TPLayout.offset(of: \TupleProperties.a.0), 0)
-  expectEqual(TPLayout.offset(of: \TupleProperties.a.1), 8)
-  expectEqual(TPLayout.offset(of: \TupleProperties.b), 24)
-  expectEqual(TPLayout.offset(of: \TupleProperties.b.x), 24)
-  expectEqual(TPLayout.offset(of: \TupleProperties.b.y), 40)
-  expectEqual(TPLayout.offset(of: \TupleProperties.c), 48)
-  expectEqual(TPLayout.offset(of: \TupleProperties.c.m), 48)
-  expectEqual(TPLayout.offset(of: \TupleProperties.c.n), 56)
+  expectEqual(TPLayout.offset(of: \TupleProperties.a.1), MemoryLayout<Int>.size)
+  expectEqual(TPLayout.offset(of: \TupleProperties.b), MemoryLayout<(Int, String)>.size)
+  expectEqual(TPLayout.offset(of: \TupleProperties.b.x), MemoryLayout<(Int, String)>.size)
+  expectEqual(TPLayout.offset(of: \TupleProperties.b.y), MemoryLayout<(Int, String, String)>.size)
+  expectEqual(TPLayout.offset(of: \TupleProperties.c), MemoryLayout<(Int, String, String, Int)>.size)
+  expectEqual(TPLayout.offset(of: \TupleProperties.c.m), MemoryLayout<(Int, String, String, Int)>.size)
+  expectEqual(TPLayout.offset(of: \TupleProperties.c.n), MemoryLayout<(Int, String, String, Int, C<Int>)>.size)
 
   let TLayout = MemoryLayout<Tuple<Int, Int>>.self
   expectEqual(TLayout.offset(of: \Tuple<Int, Int>.self), 0)