Spellling mistakes.

src/compiler.cc

Index: src/compiler.cc
===================================================================
--- src/compiler.cc	(revision 10398)
+++ src/compiler.cc	(working copy)
@@ -628,7 +628,7 @@
         // scope info.  Please note, that the order of the shared function
         // info initialization is important since set_scope_info might
         // trigger a GC, causing the ASSERT below to be invalid if the code
-        // was flushed. By settting the code object last we avoid this.
+        // was flushed. By setting the code object last we avoid this.
         Handle<ScopeInfo> scope_info = ScopeInfo::Create(info->scope());
         shared->set_scope_info(*scope_info);
         shared->set_code(*code);