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
int fOffset;
		int fLength;
		LinkedModeUI fUI;
		Position fFirstPosition;
		Position fSecondPosition;
	}
	/**
	 * Position updater that takes any changes at the borders of a position to not belong to the position.
	 *
	 * @since 3.0
	 */
	private static class ExclusivePositionUpdater implements IPositionUpdater {
		
		private final String fCategory;
		/**
		 * Creates a new updater for the given <code>category</code>.
		 *
		 * @param category the new category.
		 */