[wasm][cleanup] Fix typo

Bug: v8:7570
Change-Id: I90d9cb6c22c34017df2fd1613f3c94bb6a9afb52
Reviewed-on: https://chromium-review.googlesource.com/1033452Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Eric Holk <eholk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52863}

src/wasm/module-compiler.cc

@@ -1760,7 +1760,7 @@ MaybeHandle<WasmInstanceObject> InstanceBuilder::Build() {
                        (FLAG_experimental_wasm_threads && memory->is_shared()));
   } else if (initial_pages > 0 || use_trap_handler()) {
     // We need to unconditionally create a guard region if using trap handlers,
-    // even when the size is zero to prevent null-derefence issues
+    // even when the size is zero to prevent null-dereference issues
     // (e.g. https://crbug.com/769637).
     // Allocate memory if the initial size is more than 0 pages.
     memory_ = AllocateMemory(initial_pages);