bugfix in changing shape mid-stroke

Dependencies

• [2] TGZAJUEF bring back a set of constants
• [3] OGD5RAQK bugfix: naming points in drawings
• [4] APYPFFS3 call edit rather than App callbacks in tests
• [5] UHB4GARJ left/right margin -> left/right coordinates
• [6] LNUHQOGH start passing in Editor_state explicitly
• [7] CRYGI3LR more drawing tests
• [8] MTJEVRJR add state arg to a few functions
• [9] 3MAZEQK5 add state arg to Text.textinput
• [10] 2L5MEZV3 experiment: new edit namespace
• [11] LF7BWEG4 group all editor globals
• [*] K2X6G75Z start writing some tests for drawings

Change contents

• replacement in edit.lua at line 292
  [4.10292]→[3.26:133](∅→∅),[3.133]→[4.777:806](∅→∅),[4.10292]→[4.777:806](∅→∅)
  − for _,line_cache in ipairs(State.line_cache) do line_cache.starty = nil end -- just in case we scroll

  − Text.textinput(State, t)
  [4.10292]

  [4.10314]
  + local drawing_index, drawing = Drawing.current_drawing(State)

  + if drawing_index == nil then

  + for _,line_cache in ipairs(State.line_cache) do line_cache.starty = nil end -- just in case we scroll

  + Text.textinput(State, t)

  + end
• replacement in drawing_tests.lua at line 188
  [2.2495]→[4.8742:8787](∅→∅),[4.26561]→[4.8742:8787](∅→∅),[4.8742]→[4.8742:8787](∅→∅)
  − edit.run_after_keychord(Editor_state, 'o')
  [2.2495]

  [2.2496]
  + edit.run_after_textinput(Editor_state, 'o')