Split nested namespaces declaration in two lines in accordance with C++ Style Guide.

src/compilation-cache.cc

 // Copyright 2008 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 11 matching lines @@
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include "v8.h"
 
 #include "compilation-cache.h"
 
-namespace v8 { namespace internal {
+namespace v8 {
+namespace internal {
 
 enum {
   // The number of script generations tell how many GCs a script can
   // survive in the compilation cache, before it will be flushed if it
   // hasn't been used.
   NUMBER_OF_SCRIPT_GENERATIONS = 5,
 
   // The compilation cache consists of tables - one for each entry
   // kind plus extras for the script generations.
   NUMBER_OF_TABLE_ENTRIES =
@@ skipping 253 matching lines @@
 }
 
 
 void CompilationCache::Disable() {
   enabled = false;
   Clear();
 }
 
 
 } }  // namespace v8::internal