A change in SDL2 (libsdl-org/SDL@61cd57d) caused modifier changes to be sent as a repeat keydown with different key modifiers.

This causes some keybindings to become un-typeable (For example: Cmd+Shift+W, E) because the keyup events cause these new keydown repeats with the new modifiers (for the previous example these are something like Cmd+Shift/Cmd+W/Shift+W).

…out repeat events.

This feels like a hack...

 - fix undo/redo cases that broke text, specially when in collaboration with the syntax highlighter
 - make undo/redo work on a word-by-word basis
 - make undo/redo restore selection and cursur when doing a replacement by paste/completion

Co-authored-by: Fede Lochbaum <[email protected]>

…ugSession. These tests should be parametrized in the future. They are commited like this to ease the performance comparison between DebugSession and EnhancedDebugSession

Improvements in undo/redo

…vents

Fix repeat events

…cut Editor

Remove unnecessary KM repository reset

Fix typo: change "The cyclomatic complexity is heigh" to "The cyclomatic complexity is high"

…s-editor

Major update of the Keymap Descriptions to a Shortcuts Editor

…t raise an exception in the interpreter but put a new context in it with the message send taken from the Smalltalk Special Array