Bug 116836 [clean up] Remove unnecessary casts
I20051116-1332 Clean up could offer "Remove unnecessary casts".
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/correction/LocalCorrectionsSubProcessor.java
ChangeMethodSignatureProposal proposal= new ChangeMethodSignatureProposal(label, cu, astRoot, binding, null, desc, 8, image);
				for (int i= 0; i < uncaughtExceptions.length; i++) {
					addExceptionTypeLinkProposals(proposal, uncaughtExceptions[i], proposal.getExceptionTypeGroupId(i + nExistingExceptions));
				}
				proposal.setCommandId(ADD_EXCEPTION_TO_THROWS_ID);
				proposals.add(proposal);
			}
		}
	}
	private static void addExceptionTypeLinkProposals(LinkedCorrectionProposal proposal, ITypeBinding exc, String key) {
		
		while (exc != null && !"java.lang.Object".equals(exc.getQualifiedName())) { 
			proposal.addLinkedPositionProposal(key, exc);
			exc= exc.getSuperclass();
		}
	}
	private static boolean canRemoveException(ITypeBinding curr, ITypeBinding[] addedExceptions) {
		while (curr != null) {
			for (int i= 0; i < addedExceptions.length; i++) {
				if (curr == addedExceptions[i]) {
					return true;
				}
			}
			curr= curr.getSuperclass();
		}
		return false;
	}
	public static void addUnreachableCatchProposals(IInvocationContext context, IProblemLocation problem, Collection proposals) {
		ASTNode selectedNode= problem.getCoveringNode(context.getASTRoot());
		if (selectedNode == null) {