[IRGen] Support additional single payload enum cases in layout strings (swiftlang#66042)

* [IRGen] Support additional single payload enum cases in layout strings

rdar://105837101

Adds layout string support for single payload enums with simple (non-scattered) extra inhabitant patterns

* Add more test cases

Author: drexin

lib/IRGen/GenDiffFunc.cpp

@@ -139,7 +139,8 @@ class DifferentiableFuncTypeInfo final
     //   return fields[0];
     // }
 
-    return IGM.typeLayoutCache.getOrCreateAlignedGroupEntry(fields, T, getBestKnownAlignment().getValue());
+    return IGM.typeLayoutCache.getOrCreateAlignedGroupEntry(
+        fields, T, getBestKnownAlignment().getValue(), *this);
   }
 
   llvm::NoneType getNonFixedOffsets(IRGenFunction &IGF) const { return None; }
@@ -313,7 +314,8 @@ class LinearFuncTypeInfo final
     //   return fields[0];
     // }
 
-    return IGM.typeLayoutCache.getOrCreateAlignedGroupEntry(fields, T, getBestKnownAlignment().getValue());
+    return IGM.typeLayoutCache.getOrCreateAlignedGroupEntry(
+        fields, T, getBestKnownAlignment().getValue(), *this);
   }
 
   llvm::NoneType getNonFixedOffsets(IRGenFunction &IGF) const { return None; }

lib/IRGen/GenExistential.cpp

@@ -1087,7 +1087,8 @@ class ClassExistentialTypeInfo final
           ScalarKind::TriviallyDestroyable));
     }
 
-    return IGM.typeLayoutCache.getOrCreateAlignedGroupEntry(alignedGroup, T, getBestKnownAlignment().getValue());
+    return IGM.typeLayoutCache.getOrCreateAlignedGroupEntry(
+        alignedGroup, T, getBestKnownAlignment().getValue(), *this);
   }
 
   /// Given an explosion with multiple pointer elements in them, pack them

lib/IRGen/GenStruct.cpp

@@ -416,7 +416,8 @@ namespace {
       //   return fields[0];
       // }
 
-      return IGM.typeLayoutCache.getOrCreateAlignedGroupEntry(fields, T, getBestKnownAlignment().getValue());
+      return IGM.typeLayoutCache.getOrCreateAlignedGroupEntry(
+          fields, T, getBestKnownAlignment().getValue(), *this);
     }
 
     void initializeFromParams(IRGenFunction &IGF, Explosion &params,
@@ -765,7 +766,8 @@ namespace {
         return fields[0];
       }
 
-      return IGM.typeLayoutCache.getOrCreateAlignedGroupEntry(fields, T, getBestKnownAlignment().getValue());
+      return IGM.typeLayoutCache.getOrCreateAlignedGroupEntry(
+          fields, T, getBestKnownAlignment().getValue(), *this);
     }
 
     void initializeFromParams(IRGenFunction &IGF, Explosion &params,
@@ -921,7 +923,8 @@ namespace {
         return fields[0];
       }
 
-      return IGM.typeLayoutCache.getOrCreateAlignedGroupEntry(fields, T, getBestKnownAlignment().getValue());
+      return IGM.typeLayoutCache.getOrCreateAlignedGroupEntry(
+          fields, T, getBestKnownAlignment().getValue(), *this);
     }
 
     void initializeFromParams(IRGenFunction &IGF, Explosion &params,
@@ -999,7 +1002,8 @@ namespace {
       //   return fields[0];
       // }
 
-      return IGM.typeLayoutCache.getOrCreateAlignedGroupEntry(fields, T, getBestKnownAlignment().getValue());
+      return IGM.typeLayoutCache.getOrCreateAlignedGroupEntry(
+          fields, T, getBestKnownAlignment().getValue(), *this);
     }
 
     llvm::NoneType getNonFixedOffsets(IRGenFunction &IGF) const {
@@ -1090,7 +1094,8 @@ namespace {
       //   return fields[0];
       // }
 
-      return IGM.typeLayoutCache.getOrCreateAlignedGroupEntry(fields, T, getBestKnownAlignment().getValue());
+      return IGM.typeLayoutCache.getOrCreateAlignedGroupEntry(
+          fields, T, getBestKnownAlignment().getValue(), *this);
     }
 
     // We have an indirect schema.

lib/IRGen/GenTuple.cpp

@@ -297,7 +297,8 @@ namespace {
       // if (fields.size() == 1) {
       //   return fields[0];
       // }
-      return IGM.typeLayoutCache.getOrCreateAlignedGroupEntry(fields, T, getBestKnownAlignment().getValue());
+      return IGM.typeLayoutCache.getOrCreateAlignedGroupEntry(
+          fields, T, getBestKnownAlignment().getValue(), *this);
     }
 
     llvm::NoneType getNonFixedOffsets(IRGenFunction &IGF) const {
@@ -348,7 +349,8 @@ namespace {
       //   return fields[0];
       // }
 
-      return IGM.typeLayoutCache.getOrCreateAlignedGroupEntry(fields, T, getBestKnownAlignment().getValue());
+      return IGM.typeLayoutCache.getOrCreateAlignedGroupEntry(
+          fields, T, getBestKnownAlignment().getValue(), *this);
     }
 
     llvm::NoneType getNonFixedOffsets(IRGenFunction &IGF) const {
@@ -422,7 +424,8 @@ namespace {
       //   return fields[0];
       // }
 
-      return IGM.typeLayoutCache.getOrCreateAlignedGroupEntry(fields, T, getBestKnownAlignment().getValue());
+      return IGM.typeLayoutCache.getOrCreateAlignedGroupEntry(
+          fields, T, getBestKnownAlignment().getValue(), *this);
     }
 
     llvm::Value *getEnumTagSinglePayload(IRGenFunction &IGF,