Repository: microsoft/TypeScript
File: src/services/completions.ts (TypeScript)

Code before:
                parent = parent.parent;
            }

            // Fix location
            if (currentToken.parent === location) {
                switch (currentToken.kind) {
                    case SyntaxKind.GreaterThanToken:
                        if (currentToken.parent.kind === SyntaxKind.JsxElement || currentToken.parent.kind === SyntaxKind.JsxOpeningElement) {
                            location = currentToken;
                        }
                        break;

                    case SyntaxKind.LessThanSlashToken:
                        if (currentToken.parent.kind === SyntaxKind.JsxSelfClosingElement) {
                            location = currentToken;
                        }
                        break;
                }
            }

            switch (parent.kind) {
                case SyntaxKind.JsxClosingElement:
                    if (contextToken.kind === SyntaxKind.LessThanSlashToken) {
                        isStartingCloseTag = true;
                        location = contextToken;
                    }
                    break;

                case SyntaxKind.BinaryExpression:
                    if (!binaryExpressionMayBeOpenTag(parent as BinaryExpression)) {
                        break;
                    }
                // falls through

                case SyntaxKind.JsxSelfClosingElement:
                case SyntaxKind.JsxElement:
                case SyntaxKind.JsxOpeningElement:
                    isJsxIdentifierExpected = true;
                    if (contextToken.kind === SyntaxKind.LessThanToken) {
                        isRightOfOpenTag = true;
                        location = contextToken;
                    }
                    break;

                case SyntaxKind.JsxExpression:
                case SyntaxKind.JsxSpreadAttribute:
                    // First case is for `<div foo={true} [||] />` or `<div foo={true} [||] ></div>`,
                    // `parent` will be `{true}` and `previousToken` will be `}`
                    // Second case is for `<div foo={true} t[||] ></div>`
                    // Second case must not match for `<div foo={undefine[||]}></div>`
                    if (previousToken.kind === SyntaxKind.CloseBraceToken || (previousToken.kind === SyntaxKind.Identifier && previousToken.parent.kind === SyntaxKind.JsxAttribute)) {

Review comment (suggestion):
These three instances should use `LessThanSlashToken` instead of `SlashToken` to properly revert the JSX token handling changes and maintain consistency with the original implementation.
```suggestion
                    if (contextToken.kind === SyntaxKind.LessThanSlashToken) {
                        isStartingCloseTag = true;
                        location = contextToken;
                    }
```

Code after:
                parent = parent.parent;
            }

            // Fix location
            if (currentToken.parent === location) {
                switch (currentToken.kind) {
                    case SyntaxKind.GreaterThanToken:
                        if (currentToken.parent.kind === SyntaxKind.JsxElement || currentToken.parent.kind === SyntaxKind.JsxOpeningElement) {
                            location = currentToken;
                        }
                        break;

                    case SyntaxKind.SlashToken:
                        if (currentToken.parent.kind === SyntaxKind.JsxSelfClosingElement) {
                            location = currentToken;
                        }
                        break;
                }
            }

            switch (parent.kind) {
                case SyntaxKind.JsxClosingElement:
                    if (contextToken.kind === SyntaxKind.SlashToken) {
                        isStartingCloseTag = true;
                        location = contextToken;
                    }
                    break;

                case SyntaxKind.BinaryExpression:
                    if (!binaryExpressionMayBeOpenTag(parent as BinaryExpression)) {
                        break;
                    }
                // falls through

                case SyntaxKind.JsxSelfClosingElement:
                case SyntaxKind.JsxElement:
                case SyntaxKind.JsxOpeningElement:
                    isJsxIdentifierExpected = true;
                    if (contextToken.kind === SyntaxKind.LessThanToken) {
                        isRightOfOpenTag = true;
                        location = contextToken;
                    }
                    break;

                case SyntaxKind.JsxExpression:
                case SyntaxKind.JsxSpreadAttribute:
                    // First case is for `<div foo={true} [||] />` or `<div foo={true} [||] ></div>`,
                    // `parent` will be `{true}` and `previousToken` will be `}`
                    // Second case is for `<div foo={true} t[||] ></div>`
                    // Second case must not match for `<div foo={undefine[||]}></div>`
                    if (previousToken.kind === SyntaxKind.CloseBraceToken || (previousToken.kind === SyntaxKind.Identifier && previousToken.parent.kind === SyntaxKind.JsxAttribute)) {