[JSC] Add missing header guards
<https://webkit.org/b/206448>

Reviewed by Mark Lam.

* heap/IsoHeapCellType.h:
* wasm/WasmFaultSignalHandler.h:
- Add #pragma once header guard.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@254787 268f45cc-cd09-0410-ab3c-d52691b4dbfc
diff --git a/Source/JavaScriptCore/ChangeLog b/Source/JavaScriptCore/ChangeLog
index 0d521a1..00335d7 100644
--- a/Source/JavaScriptCore/ChangeLog
+++ b/Source/JavaScriptCore/ChangeLog
@@ -1,3 +1,14 @@
+2020-01-17  David Kilzer  <ddkilzer@apple.com>
+
+        [JSC] Add missing header guards
+        <https://webkit.org/b/206448>
+
+        Reviewed by Mark Lam.
+
+        * heap/IsoHeapCellType.h:
+        * wasm/WasmFaultSignalHandler.h:
+        - Add #pragma once header guard.
+
 2020-01-17  Mark Lam  <mark.lam@apple.com>
 
         JSModuleLoader's printableModuleKey() should never throw.
diff --git a/Source/JavaScriptCore/heap/IsoHeapCellType.h b/Source/JavaScriptCore/heap/IsoHeapCellType.h
index 091a91c..661b6fc 100644
--- a/Source/JavaScriptCore/heap/IsoHeapCellType.h
+++ b/Source/JavaScriptCore/heap/IsoHeapCellType.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2019 Apple Inc. All rights reserved.
+ * Copyright (C) 2019-2020 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -23,6 +23,8 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#pragma once
+
 #include "HeapCellType.h"
 #include "MarkedBlockInlines.h"
 
diff --git a/Source/JavaScriptCore/wasm/WasmFaultSignalHandler.h b/Source/JavaScriptCore/wasm/WasmFaultSignalHandler.h
index 4f24070..783b6a6 100644
--- a/Source/JavaScriptCore/wasm/WasmFaultSignalHandler.h
+++ b/Source/JavaScriptCore/wasm/WasmFaultSignalHandler.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2017 Apple Inc. All rights reserved.
+ * Copyright (C) 2017-2020 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -23,6 +23,8 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#pragma once
+
 #if ENABLE(WEBASSEMBLY)
 
 namespace JSC {