Rename MethodInvocation.period to MethodInvocation.operator.

Rename MethodInvocation.period to MethodInvocation.operator.

The name is inaccurate--if the method invocation is part of a cascade,
it is the ".." operator.  It's going to get even more inaccurate when
null-aware operators are added, since it will also be used to
represent "?.".

Deprecated getters and setters named "period" are added to avoid
breaking the analyzer API.

R=brianwilkerson@google.com

Committed: https://code.google.com/p/dart/source/detail?r=44744

[Paul Berry, 2015-03-27 16:14:43]

paulberry@google.com changed reviewers:
+ danrubel@google.com

[Brian Wilkerson, 2015-03-27 16:26:24]

brianwilkerson@google.com changed reviewers:
+ brianwilkerson@google.com

[Brian Wilkerson, 2015-03-27 16:26:25]

LGTM

https://codereview.chromium.org/1039713002/diff/1/pkg/analyzer/lib/src/genera...
File pkg/analyzer/lib/src/generated/ast.dart (right):

https://codereview.chromium.org/1039713002/diff/1/pkg/analyzer/lib/src/genera...
pkg/analyzer/lib/src/generated/ast.dart:11763: * The period that separates the
target from the method name in an ordinary
I'd prefer the following (because it will expand to other cases more easily):

The operator that separates the target from the method name, or `null` if there
is no target. In an ordinary method invocation this will be a period ('.'). In a
cascade section this will be the cascade operator ('..').

[Paul Berry, 2015-03-27 16:38:41]

Committed patchset #1 (id:1) manually as 44744 (presubmit successful).

[Paul Berry, 2015-03-27 16:38:58]

https://codereview.chromium.org/1039713002/diff/1/pkg/analyzer/lib/src/genera...
File pkg/analyzer/lib/src/generated/ast.dart (right):

https://codereview.chromium.org/1039713002/diff/1/pkg/analyzer/lib/src/genera...
pkg/analyzer/lib/src/generated/ast.dart:11763: * The period that separates the
target from the method name in an ordinary
On 2015/03/27 16:26:24, Brian Wilkerson wrote:
> I'd prefer the following (because it will expand to other cases more easily):
> 
> The operator that separates the target from the method name, or `null` if
there
> is no target. In an ordinary method invocation this will be a period ('.'). In
a
> cascade section this will be the cascade operator ('..').

Done.