[turbofan] Length and index2 are unsigned in CheckedLoad/CheckedStore.

test/cctest/cctest.gyp

 # Copyright 2012 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 61 matching lines @@
         'compiler/test-run-bytecode-graph-builder.cc',
         'compiler/test-run-calls-to-external-references.cc',
         'compiler/test-run-deopt.cc',
         'compiler/test-run-inlining.cc',
         'compiler/test-run-intrinsics.cc',
         'compiler/test-run-jsbranches.cc',
         'compiler/test-run-jscalls.cc',
         'compiler/test-run-jsexceptions.cc',
         'compiler/test-run-jsobjects.cc',
         'compiler/test-run-jsops.cc',
+        'compiler/test-run-load-store.cc',
         'compiler/test-run-machops.cc',
         'compiler/test-run-native-calls.cc',
         'compiler/test-run-stackcheck.cc',
         'compiler/test-run-stubs.cc',
         'compiler/test-run-variables.cc',
         'compiler/test-run-wasm-machops.cc',
         'compiler/test-simplified-lowering.cc',
         'cctest.cc',
         'expression-type-collector.cc',
         'expression-type-collector.h',
@@ skipping 345 matching lines @@
             '../../build/isolate.gypi',
           ],
           'sources': [
             'cctest.isolate',
           ],
         },
       ],
     }],
   ],
 }