Reapply CL "Option to truncate integers to 64 bits, part 2"

Reapply CL "Option to truncate integers to 64 bits, part 2"

This is the 2nd attempt to land the CL
abed3c2a70856d54615890596a4a5db6cffe124f

Original review: https://codereview.chromium.org/2982823002
No extra changes were made. Large literals in the Dart core library
which caused failures during the previous attempt to land this CL have
been fixed separately.

Description of the CL:

In --limit-ints-to-64-bits mode:
* Integer constructors return Integer::null if integer is out of range.
* Error is reported for integer literals which are out of range.
* Dart API is revised to return errors if integers are out of range.

Bigint::IsDisabled() method is introduced to be able to enable/disable
Bigints independently of --limit-ints-to-64-bits mode in future.

Deprecated constructor Integer::NewFromUint64 is replaced with
Integer::New in certain cases.

R=regis@google.com

Issue: https://github.com/dart-lang/sdk/issues/30103
Committed: https://github.com/dart-lang/sdk/commit/bc937b3b6b4b1991547e00f852a6333699b64bc5

[alexmarkov, 2017-07-17 18:07:35]

alexmarkov@google.com changed reviewers:
+ asiva@google.com, regis@google.com, zra@google.com

[regis, 2017-07-17 18:32:08]

lgtm

[alexmarkov, 2017-07-17 19:20:25]

Description was changed from

==========
Reapply CL "Option to truncate integers to 64 bits, part 2"

This is the 2nd attempt to land the CL
abed3c2a70856d54615890596a4a5db6cffe124f

Original review: https://codereview.chromium.org/2982823002
No extra changes were made. Large literals in the Dart core library
which caused failures during the previous attempt to land this CL have
been fixed separately.

Description of the CL:

In --limit-ints-to-64-bits mode:
* Integer constructors return Integer::null if integer is out of range.
* Error is reported for integer literals which are out of range.
* Dart API is revised to return errors if integers are out of range.

Bigint::IsDisabled() method is introduced to be able to enable/disable
Bigints independently of --limit-ints-to-64-bits mode in future.

Deprecated constructor Integer::NewFromUint64 is replaced with
Integer::New in certain cases.

Issue: https://github.com/dart-lang/sdk/issues/30103
==========

to

==========
Reapply CL "Option to truncate integers to 64 bits, part 2"

This is the 2nd attempt to land the CL
abed3c2a70856d54615890596a4a5db6cffe124f

Original review: https://codereview.chromium.org/2982823002
No extra changes were made. Large literals in the Dart core library
which caused failures during the previous attempt to land this CL have
been fixed separately.

Description of the CL:

In --limit-ints-to-64-bits mode:
* Integer constructors return Integer::null if integer is out of range.
* Error is reported for integer literals which are out of range.
* Dart API is revised to return errors if integers are out of range.

Bigint::IsDisabled() method is introduced to be able to enable/disable
Bigints independently of --limit-ints-to-64-bits mode in future.

Deprecated constructor Integer::NewFromUint64 is replaced with
Integer::New in certain cases.

R=regis@google.com

Issue: https://github.com/dart-lang/sdk/issues/30103
Committed:
https://github.com/dart-lang/sdk/commit/bc937b3b6b4b1991547e00f852a6333699b64bc5
==========

[alexmarkov, 2017-07-17 19:20:27]

Committed patchset #1 (id:1) manually as
bc937b3b6b4b1991547e00f852a6333699b64bc5 (presubmit successful).