Bug 76363 NPE in AdvancedQuickAssistProcessor.getFullyCoveredNodes
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/correction/AdvancedQuickAssistProcessor.java
String[] varNames= suggestLocalVariableNames(cu, originalType.resolveBinding());
		for (int i= 0; i < varNames.length; i++) {
			proposal.addLinkedPositionProposal(KEY_NAME, varNames[i], null);
		}
		CastExpression castExpression= ast.newCastExpression();
		castExpression.setExpression((Expression) rewrite.createCopyTarget(expression.getLeftOperand()));
		castExpression.setType((Type) ASTNode.copySubtree(ast, originalType));
		
		VariableDeclarationFragment vdf= ast.newVariableDeclarationFragment();
		vdf.setName(ast.newSimpleName(varNames[0]));
		vdf.setInitializer(castExpression);
		
		VariableDeclarationStatement vds= ast.newVariableDeclarationStatement(vdf);
		vds.setType((Type) ASTNode.copySubtree(ast, originalType));
		
		if (body instanceof Block) {
			ListRewrite listRewriter= rewrite.getListRewrite(body, Block.STATEMENTS_PROPERTY);
			listRewriter.insertAt(vds, 0, null);
		} else {
			Block newBlock= ast.newBlock();
			List statements= newBlock.statements();
			statements.add(vds);
			statements.add(rewrite.createMoveTarget(body));
			rewrite.replace(body, newBlock, null);
		}
		
		proposal.addLinkedPosition(rewrite.track(vdf.getName()), true, KEY_NAME);
		proposal.addLinkedPosition(rewrite.track(vds.getType()), false, KEY_TYPE);
		proposal.addLinkedPosition(rewrite.track(castExpression.getType()), false, KEY_TYPE);