Changes

Add switch fullscreen option to welcome screen
Fix #6109

Fixes #2679 as per VW Regex 1.3.1 patch Includes unit tests by
marianopeck

Use #ifExists:(ifAbsent:) at more places.

Revert MorphicUIManager update

Remove some more updates

- implement #addTemps: in terms of addTemp: - there we can make the fact
that we reuse temp offsets very explicit

rename IRPrinterV2 to IRPrinter and IRTranslaterV2 to IRTranslator
(internal classes, no depcrecation needed)

Revert updates from FT, FileDialog and FFI

More reverts to find the source of the problem.

Revert UI theme

Reapply previous revert

This PR documents #hasIncompleteIdentifier and does some small fixes for
#findVariable:ifNone:
- add a default method to OCAbstract scope, removes two methods that
were implemetend the same in the subclasses
- make sure to evaluate the ifNone block if the outerScope is nil
- comments
I am tempted to get rid of findVariable: ifNone: and instead:
-  implement #hasBindingThatbeginsWith: on the scope hierarchy. 
- use the existing (fast) hasBindingThatBeginsWith: when checking Class
and global scope
But as a first step, this PR is good to integrate

- implement  #hasBindingThatBeginsWith: on Class and the Scope hierarchy
- tests for all - hasIncompleteIdentifier now uses 
#hasBindingThatBeginsWith: - remove the #findVariable:ifNone: on the
scope hierarchy. (Internal, no deprecation needed)

small test improvement

#hasBindingThatBeginsWith: is not send anymore by the tools (the
mechanism uses the #hasIncompleteIdentifier on RBVariableNode instead
which does not send it to the tools)
What this PR does:
- keep #hasBindingThatBeginsWith: on the level of Dictionary
- remove from SharedPool as we  inherit from class
- remove all the unused implementations on the tool level

MemoryFileWriteStream fix Always using "stream" accessor instead of 
instance variable.

MemoryFileWriteStream - fix #2 - removed readInto:startingAt:count as
this is write stream method - added test for writing and reading back
the data

Add switch fullscreen option to welcome screen
Fix #6109

Fixes #2679 as per VW Regex 1.3.1 patch Includes unit tests by
marianopeck

Use #ifExists:(ifAbsent:) at more places.

Revert MorphicUIManager update

Remove some more updates

- implement #addTemps: in terms of addTemp: - there we can make the fact
that we reuse temp offsets very explicit

rename IRPrinterV2 to IRPrinter and IRTranslaterV2 to IRTranslator
(internal classes, no depcrecation needed)

Revert updates from FT, FileDialog and FFI

More reverts to find the source of the problem.

Revert UI theme

Reapply previous revert

This PR documents #hasIncompleteIdentifier and does some small fixes for
#findVariable:ifNone:
- add a default method to OCAbstract scope, removes two methods that
were implemetend the same in the subclasses
- make sure to evaluate the ifNone block if the outerScope is nil
- comments
I am tempted to get rid of findVariable: ifNone: and instead:
-  implement #hasBindingThatbeginsWith: on the scope hierarchy. 
- use the existing (fast) hasBindingThatBeginsWith: when checking Class
and global scope
But as a first step, this PR is good to integrate

- implement  #hasBindingThatBeginsWith: on Class and the Scope hierarchy
- tests for all - hasIncompleteIdentifier now uses 
#hasBindingThatBeginsWith: - remove the #findVariable:ifNone: on the
scope hierarchy. (Internal, no deprecation needed)

small test improvement

#hasBindingThatBeginsWith: is not send anymore by the tools (the
mechanism uses the #hasIncompleteIdentifier on RBVariableNode instead
which does not send it to the tools)
What this PR does:
- keep #hasBindingThatBeginsWith: on the level of Dictionary
- remove from SharedPool as we  inherit from class
- remove all the unused implementations on the tool level

MemoryFileWriteStream fix Always using "stream" accessor instead of 
instance variable.

MemoryFileWriteStream - fix #2 - removed readInto:startingAt:count as
this is write stream method - added test for writing and reading back
the data