Notebook Performance Improvements to Cell Editing/Output Changes/Execution Count Changes (#6867)

* edit perf

* Save multiline source in notebooks

* More merges

* Single, multi line works needs work

* Works with single + multi and recomputes active

* Actual perf improvements this time

* code cleanup

* Calculating output position on the fly

* Hmm can we use brackets to make this simpler?

* monday progress

* output working. lots of improvements.

* First tests working

* 10 tests now, fixed bugs

* Cleanup, add output test

* More fixes

* Need to still fix execution count bug

* Tests pass, added comments

* Cleanup

* PR comments round 1

* Deal with merge issues from master, layering

* Deleting duplicate file

* More PR Comments

* PR Comments

src/sql/workbench/api/browser/mainThreadNotebookDocumentsAndEditors.ts

@@ -626,6 +626,7 @@ export class MainThreadNotebookDocumentsAndEditors extends Disposable implements
 			case NotebookChangeType.CellOutputUpdated:
 			case NotebookChangeType.CellSourceUpdated:
 			case NotebookChangeType.DirtyStateChanged:
+			case NotebookChangeType.CellOutputCleared:
 				return NotebookChangeKind.ContentUpdated;
 			case NotebookChangeType.KernelChanged:
 			case NotebookChangeType.TrustChanged:
@@ -654,7 +655,8 @@ export class MainThreadNotebookDocumentsAndEditors extends Disposable implements
 						cell_type: cell.cellType,
 						execution_count: cell.executionCount,
 						metadata: {
-							language: cell.language
+							language: cell.language,
+							azdata_cell_guid: cell.cellGuid
 						},
 						source: undefined,
 						outputs: [...cell.outputs]
@@ -669,7 +671,8 @@ export class MainThreadNotebookDocumentsAndEditors extends Disposable implements
 					cell_type: cells.cellType,
 					execution_count: undefined,
 					metadata: {
-						language: cells.language
+						language: cells.language,
+						azdata_cell_guid: cells.cellGuid
 					},
 					source: undefined
 				}