Removing bogus check introduced in r9027.

src/jsregexp.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 208 matching lines @@
                                     Handle<JSArray> last_match_info) {
   Isolate* isolate = re->GetIsolate();
 
   ASSERT(0 <= index);
   ASSERT(index <= subject->length());
 
   if (!subject->IsFlat()) FlattenString(subject);
   AssertNoAllocation no_heap_allocation;  // ensure vectors stay valid
 
   String* needle = String::cast(re->DataAt(JSRegExp::kAtomPatternIndex));
-  ASSERT(StringShape(needle).IsSequential());
   int needle_len = needle->length();
   ASSERT(needle->IsFlat());
 
   if (needle_len != 0) {
     if (index + needle_len > subject->length()) {
       return isolate->factory()->null_value();
     }
 
     String::FlatContent needle_content = needle->GetFlatContent();
     String::FlatContent subject_content = subject->GetFlatContent();
@@ skipping 5092 matching lines @@
   }
 
   return compiler.Assemble(&macro_assembler,
                            node,
                            data->capture_count,
                            pattern);
 }
 
 
 }}  // namespace v8::internal