Remove non-trivial subtyping between bitset and non-bitset types.

Remove non-trivial subtyping between bitset and non-bitset types.

R=rossberg@chromium.org
BUG=

Committed: https://code.google.com/p/v8/source/detail?r=22903

[rossberg, 2014-08-05 15:07:54]

https://codereview.chromium.org/444503005/diff/1/src/types.cc
File src/types.cc (right):

https://codereview.chromium.org/444503005/diff/1/src/types.cc#newcode25
src/types.cc:25: for (int i = 0; i < unioned->Length(); ++i) {
You don't need this loop anymore: only the first element can be non-None.

https://codereview.chromium.org/444503005/diff/1/test/cctest/test-types.cc
File test/cctest/test-types.cc (right):

https://codereview.chromium.org/444503005/diff/1/test/cctest/test-types.cc#ne...
test/cctest/test-types.cc:1323: OFStream os(stdout);
Yeah, I don't like committing this. Either all tests here should log what they
do or none.

[neis, 2014-08-05 17:01:10]

https://codereview.chromium.org/444503005/diff/1/src/types.cc
File src/types.cc (right):

https://codereview.chromium.org/444503005/diff/1/src/types.cc#newcode25
src/types.cc:25: for (int i = 0; i < unioned->Length(); ++i) {
On 2014/08/05 15:07:53, rossberg wrote:
> You don't need this loop anymore: only the first element can be non-None.

Good point.

https://codereview.chromium.org/444503005/diff/1/test/cctest/test-types.cc
File test/cctest/test-types.cc (right):

https://codereview.chromium.org/444503005/diff/1/test/cctest/test-types.cc#ne...
test/cctest/test-types.cc:1323: OFStream os(stdout);
On 2014/08/05 15:07:53, rossberg wrote:
> Yeah, I don't like committing this. Either all tests here should log what they
> do or none.

Done.

[rossberg, 2014-08-06 07:07:46]

lgtm

[neis, 2014-08-06 08:28:08]

Committed patchset #2 manually as r22903 (presubmit successful).