[heap] Add V8_NOEXCEPT annotation to LocalAllocationBuffer.

Bug: v8:8616
Change-Id: I2774bf86b3446afddb7cf269e88ba128e53ae7f6
Reviewed-on: https://chromium-review.googlesource.com/c/1390130Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58477}

src/heap/spaces.h

@@ -1980,8 +1980,9 @@ class LocalAllocationBuffer {
   ~LocalAllocationBuffer() { Close(); }
 
   // Convert to C++11 move-semantics once allowed by the style guide.
-  LocalAllocationBuffer(const LocalAllocationBuffer& other);
-  LocalAllocationBuffer& operator=(const LocalAllocationBuffer& other);
+  LocalAllocationBuffer(const LocalAllocationBuffer& other) V8_NOEXCEPT;
+  LocalAllocationBuffer& operator=(const LocalAllocationBuffer& other)
+      V8_NOEXCEPT;
 
   V8_WARN_UNUSED_RESULT inline AllocationResult AllocateRawAligned(
       int size_in_bytes, AllocationAlignment alignment);