Fix typos of "function".

runtime/vm/mirrors_api_impl.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "include/dart_mirrors_api.h"
 
 #include "platform/assert.h"
 #include "vm/class_finalizer.h"
 #include "vm/dart.h"
 #include "vm/dart_api_impl.h"
@@ skipping 140 matching lines @@
 
     // Case 2.  Lookup the function without the external setter suffix
     // '='.  Make sure to do this check after the regular lookup, so
     // that we don't interfere with operator lookups (like ==).
     if (func.IsNull() && HasExternalSetterSuffix(func_name)) {
       tmp_name = RemoveExternalSetterSuffix(func_name);
       tmp_name = Field::SetterName(tmp_name);
       func = cls.LookupFunctionAllowPrivate(tmp_name);
     }
 
-    // Case 3.  Lookup the funciton with the getter prefix prepended.
+    // Case 3.  Lookup the function with the getter prefix prepended.
     if (func.IsNull()) {
       tmp_name = Field::GetterName(func_name);
       func = cls.LookupFunctionAllowPrivate(tmp_name);
     }
 
     // Case 4.  Lookup the function with a . appended to find the
     // unnamed constructor.
     if (func.IsNull()) {
       tmp_name = String::Concat(func_name, Symbols::Dot());
       func = cls.LookupFunctionAllowPrivate(tmp_name);
@@ skipping 198 matching lines @@
     RETURN_TYPE_ERROR(isolate, closure, Instance);
   }
 
   ASSERT(ClassFinalizer::AllClassesFinalized());
 
   RawFunction* rf = Closure::function(closure_obj);
   return Api::NewHandle(isolate, rf);
 }
 
 }  // namespace dart