JSX Spread Attributes are expression parents

Fixes #4688

src/compiler/utilities.ts

@@ -981,6 +981,7 @@ namespace ts {
                         return node === (<ComputedPropertyName>parent).expression;
                     case SyntaxKind.Decorator:
                     case SyntaxKind.JsxExpression:
+                    case SyntaxKind.JsxSpreadAttribute:
                         return true;
                     case SyntaxKind.ExpressionWithTypeArguments:
                         return (<ExpressionWithTypeArguments>parent).expression === node && isExpressionWithTypeArgumentsInClassExtendsClause(parent);

tests/cases/fourslash/jsxSpreadReference.ts

@@ -0,0 +1,26 @@
+/// <reference path='fourslash.ts' />
+
+//@Filename: file.tsx
+//// declare module JSX {
+////     interface Element { }
+////     interface IntrinsicElements {
+////     }
+////     interface ElementAttributesProperty { props }
+//// }
+//// class MyClass {
+////   props: {
+////     name?: string;
+////     size?: number;
+////   }
+//// }
+////
+//// var [|/*dst*/nn|]: {name?: string; size?: number};
+//// var x = <MyClass {...[|n/*src*/n|]}></MyClass>;
+
+goTo.marker('src');
+debugger;
+goTo.definition();
+verify.caretAtMarker('dst');
+
+goTo.marker('src');
+verify.renameLocations(false, false);