Bug 97921 [typing] CompilationUnitEditor.TabConvertor should use project dependent formatter settings
with 3.1 RC1, In the code formatter I set tab policy to spaces only, indentation size = 2, and tab size = 8. when I hit the tab key, 2 spaces are added to the line instead of going to an 8 space (tab) boundary.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/CompilationUnitEditor.java
System.err.println("Code Assist (total): " + delta); 
					}
					setStatusLineErrorMessage(msg);
					return;
				case CORRECTIONASSIST_PROPOSALS:
					msg= fCorrectionAssistant.showPossibleCompletions();
					setStatusLineErrorMessage(msg);
					return;
				case UNDO:
					fIgnoreTextConverters= true;
					super.doOperation(operation);
					fIgnoreTextConverters= false;
					return;
				case REDO:
					fIgnoreTextConverters= true;
					super.doOperation(operation);
					fIgnoreTextConverters= false;
					return;
			}
			super.doOperation(operation);
		}
		/*
		 * @see ITextOperationTarget#canDoOperation(int)
		 */
		public boolean canDoOperation(int operation) {
			if (operation == CORRECTIONASSIST_PROPOSALS)
				return isEditable();
			return super.canDoOperation(operation);
		}
		/*