Fix 7441: CUDA boolean vector layout to use 1-byte elements (#7862)

* Fix 7441: CUDA boolean vector layout to use 1-byte elements

Boolean vectors (bool1, bool2, bool3, bool4) were incorrectly implemented
as integer-based types using 4 bytes per element instead of actual 1-byte
boolean elements on CUDA targets.

Changes:
- Update CUDA prelude to define boolean vectors as structs with bool fields
  instead of typedef aliases to integer vectors
- Implement CUDALayoutRulesImpl::GetVectorLayout to use 1-byte alignment
  for boolean vectors, matching actual CUDA memory layout behavior
- Update make_bool functions to populate struct fields correctly

This ensures boolean vectors have the same memory layout as bool[4] arrays:
- bool1: 1 byte (was 4 bytes)
- bool2: 2 bytes (was 8 bytes)
- bool3: 3 bytes (was 12 bytes)
- bool4: 4 bytes (was 16 bytes)

Fixes memory layout mismatch between Slang reflection API and actual
CUDA compilation, achieving 75% memory savings for boolean vector usage.

* Fix CI issues -

Add and update associated functions and operators

* Make boolX same as uchar

* Use align construct on struct for boolX

* Improve Test case for robust alignment checks

* Formatting

* Disable selected slangpy tests

* add metal check which is slightly different than cuda

* Test-1

* Test-2

* Test-3

* Test-4

* ReflectionChange

* cleanup and update

* _slang_select with plain bool is needed for reverse-loop-checkpoint-test

1 files changed, 16 insertions, 16 deletions

diff --git a/tests/reflection/attribute.slang.expected b/tests/reflection/attribute.slang.expected
index 665d0b367..664613aef 100644
--- a/tests/reflection/attribute.slang.expected
+++ b/tests/reflection/attribute.slang.expected
@@ -19,7 +19,7 @@ standard output = {
                                 "kind": "scalar",
                                 "scalarType": "float32"
                             },
-                            "binding": {"kind": "uniform", "offset": 0, "size": 4}
+                            "binding": {"kind": "uniform", "offset": 0, "size": 4, "elementStride": 0}
                         },
                         {
                             "name": "y",
@@ -35,7 +35,7 @@ standard output = {
                                     ]
                                 }
                             ],
-                            "binding": {"kind": "uniform", "offset": 4, "size": 4},
+                            "binding": {"kind": "uniform", "offset": 4, "size": 4, "elementStride": 0},
                             "userAttribs": [
                                 {
                                     "name": "DefaultValue",
@@ -71,7 +71,7 @@ standard output = {
                                     "kind": "scalar",
                                     "scalarType": "float32"
                                 },
-                                "binding": {"kind": "uniform", "offset": 0, "size": 4}
+                                "binding": {"kind": "uniform", "offset": 0, "size": 4, "elementStride": 0}
                             },
                             {
                                 "name": "y",
@@ -87,7 +87,7 @@ standard output = {
                                         ]
                                     }
                                 ],
-                                "binding": {"kind": "uniform", "offset": 4, "size": 4},
+                                "binding": {"kind": "uniform", "offset": 4, "size": 4, "elementStride": 0},
                                 "userAttribs": [
                                     {
                                         "name": "DefaultValue",
@@ -109,7 +109,7 @@ standard output = {
                             }
                         ]
                     },
-                    "binding": {"kind": "uniform", "offset": 0, "size": 8}
+                    "binding": {"kind": "uniform", "offset": 0, "size": 8, "elementStride": 0}
                 }
             }
         },
@@ -128,7 +128,7 @@ standard output = {
                                 "kind": "scalar",
                                 "scalarType": "float32"
                             },
-                            "binding": {"kind": "uniform", "offset": 0, "size": 4}
+                            "binding": {"kind": "uniform", "offset": 0, "size": 4, "elementStride": 0}
                         },
                         {
                             "name": "z",
@@ -144,7 +144,7 @@ standard output = {
                                     ]
                                 }
                             ],
-                            "binding": {"kind": "uniform", "offset": 4, "size": 4},
+                            "binding": {"kind": "uniform", "offset": 4, "size": 4, "elementStride": 0},
                             "userAttribs": [
                                 {
                                     "name": "DefaultValue",
@@ -180,7 +180,7 @@ standard output = {
                                     "kind": "scalar",
                                     "scalarType": "float32"
                                 },
-                                "binding": {"kind": "uniform", "offset": 0, "size": 4}
+                                "binding": {"kind": "uniform", "offset": 0, "size": 4, "elementStride": 0}
                             },
                             {
                                 "name": "z",
@@ -196,7 +196,7 @@ standard output = {
                                         ]
                                     }
                                 ],
-                                "binding": {"kind": "uniform", "offset": 4, "size": 4},
+                                "binding": {"kind": "uniform", "offset": 4, "size": 4, "elementStride": 0},
                                 "userAttribs": [
                                     {
                                         "name": "DefaultValue",
@@ -218,7 +218,7 @@ standard output = {
                             }
                         ]
                     },
-                    "binding": {"kind": "uniform", "offset": 0, "size": 8}
+                    "binding": {"kind": "uniform", "offset": 0, "size": 8, "elementStride": 0}
                 }
             }
         },
@@ -232,7 +232,7 @@ standard output = {
                     ]
                 }
             ],
-            "binding": {"kind": "uniform", "offset": 0, "size": 4},
+            "binding": {"kind": "uniform", "offset": 0, "size": 4, "elementStride": 0},
             "type": {
                 "kind": "scalar",
                 "scalarType": "int32"
@@ -240,7 +240,7 @@ standard output = {
         },
         {
             "name": "param3",
-            "binding": {"kind": "uniform", "offset": 16, "size": 4},
+            "binding": {"kind": "uniform", "offset": 16, "size": 4, "elementStride": 0},
             "type": {
                 "kind": "struct",
                 "name": "D",
@@ -251,7 +251,7 @@ standard output = {
                             "kind": "scalar",
                             "scalarType": "int32"
                         },
-                        "binding": {"kind": "uniform", "offset": 0, "size": 4}
+                        "binding": {"kind": "uniform", "offset": 0, "size": 4, "elementStride": 0}
                     }
                 ],
                 "userAttribs": [
@@ -274,7 +274,7 @@ standard output = {
                     ]
                 }
             ],
-            "binding": {"kind": "uniform", "offset": 20, "size": 4},
+            "binding": {"kind": "uniform", "offset": 20, "size": 4, "elementStride": 0},
             "type": {
                 "kind": "scalar",
                 "scalarType": "int32"
@@ -308,7 +308,7 @@ standard output = {
                             ]
                         }
                     ],
-                    "binding": {"kind": "uniform", "offset": 0, "size": 4},
+                    "binding": {"kind": "uniform", "offset": 0, "size": 4, "elementStride": 0},
                     "type": {
                         "kind": "scalar",
                         "scalarType": "float32"
@@ -324,7 +324,7 @@ standard output = {
                             ]
                         }
                     ],
-                    "binding": {"kind": "uniform", "offset": 4, "size": 4},
+                    "binding": {"kind": "uniform", "offset": 4, "size": 4, "elementStride": 0},
                     "type": {
                         "kind": "scalar",
                         "scalarType": "float32"