From microsoft/vscode#58810
TS and JS Grammar Extension version: 0.0.45 / latest
Code
const foo = <Foo itemIcon={tabDef.ItemID ? (tabDef.Image || null) : 'Add'} onRenderItemLink={(props) => { }}>text</Foo>;
The highlighting seems to break after the arrow function attribute

The issue actually starts in the ternary operator, with the left hand side tabDef.Image being scoped as meta.parameters.tsx