* Migrate core/contextmenu_registry.js to ES6 const/let
* Migrate core/contextmenu_registry.js to goog.module
* Migrate core/contextmenu_registry.js to named requires
* clang-format core/contextmenu_registry.js
* Make core/contextmenu_registry.js constructor private
* Migrate core/events/workspace_events.js to ES6 const/let
* Migrate core/events/workspace_events.js to goog.module
* Migrate core/events/workspace_events.js to named requires
* clang-format core/events/workspace_events.js
* Update build artifact sizes in check_metadata.sh
* Add comment about root cause of build artifact size change
* Migrate core/events/workspace_events.js to ES6 const/let
* Migrate core/events/workspace_events.js to goog.module
* Migrate core/events/workspace_events.js to named requires
* clang-format core/events/workspace_events.js
* Clarify require name for Blockly.Events.Abstract
* Migrate core/renderers/geras/path_object.js to goog.module
* Migrate core/renderers/geras/path_object.js to named requires
* clang-format core/renderers/geras/path_object.js
* Migrate core/block_svg.js to ES6 const/let
* Migrate core/block_svg.js to goog.module
* Migrate core/block_svg.js to named requires
* clang-format core/block_svg.js
* Migrate to goog.module.get for optional Comment/Warning in core/block_svg.js
* Lint changes in core/block_svg.js
* Migrate core/block.js to ES6 const/let
* Migrate core/block.js to goog.module
* Migrate core/block.js to ES6 const/let
* Migrate core/block.js to goog.module
* Migrate core/block.js to named requires
* clang-format core/block.js
* Add missing period to comment in core/block.js
* Migrate core/renderers/measurables/types.js to goog.module
* Migrate core/renderers/measurables/types.js to named requires
* clang-format core/renderers/measurables/types.js
* Migrate core/renderers/geras/highlight_constants.js to ES6 const/let
* Migrate core/renderers/geras/highlight_constants.js to goog.module
* Migrate core/renderers/geras/highlight_constants.js to named requires
* clang-format core/renderers/geras/highlight_constants.js
* Migrate core/renderers/geras/info.js to ES6 const/let
* Migrate core/renderers/geras/info.js to goog.module
* Migrate core/renderers/geras/info.js to named requires
* clang-format core/renderers/geras/info.js
* Migrate core/renderers/geras/highlighter.js to ES6 const/let
* Migrate core/renderers/geras/highlighter.js to goog.module
* Migrate core/renderers/geras/highlighter.js to named requires
* clang-format core/renderers/geras/highlighter.js
* Migrate core/events/events_bubble_open.js to ES6 const/let
* Migrate core/events/events_bubble_open.js to goog.module
* Migrate core/events/events_bubble_open.js to named requires
* Migrate core/events/events_trashcan_open.js to ES6 const/let
* Migrate core/events/events_trashcan_open.js to goog.module
* Migrate core/events/events_trashcan_open.js to named requires
* clang-format core/events/events_trashcan_open.js
* Migrate core/workspace_drag_surface_svg.js to ES6 const/let
* Migrate core/workspace_drag_surface_svg.js to goog.module
* Migrate core/workspace_drag_surface_svg.js to named requires
* clang-format core/workspace_drag_surface_svg.js
* Re-wrap strings onto one line
* Migrate core/events/events_selected.js to ES6 const/let
* Migrate core/events/events_selected.js to goog.module
* Migrate core/events/events_selected.js to named requires
* clang-format core/events/events_selected.js