Do not error when spread generic type

Kanchalai Tanglertsampan · Kanchalai Tanglertsampan · commit e829fa0cc1b8 · 2017-05-08T16:07:00.000-07:00
diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
@@ -13234,11 +13234,7 @@ namespace ts {
                         attributesArray = [];
                         attributesTable = createMap<Symbol>();
                     }
-                    const exprType = checkExpression(attributeDecl.expression);
-                    if (!isValidSpreadType(exprType)) {
-                        error(attributeDecl, Diagnostics.Spread_types_may_only_be_created_from_object_types);
-                        hasSpreadAnyType = true;
-                    }
+                    const exprType = getApparentType(checkExpression(attributeDecl.expression))
                     if (isTypeAny(exprType)) {
                         hasSpreadAnyType = true;
                     }

Original file line number	Diff line number	Diff line change
`@@ -13234,11 +13234,7 @@ namespace ts {`
`13234`	`13234`	`attributesArray = [];`
`13235`	`13235`	`attributesTable = createMap<Symbol>();`
`13236`	`13236`	`}`
`13237`		`- const exprType = checkExpression(attributeDecl.expression);`
`13238`		`- if (!isValidSpreadType(exprType)) {`
`13239`		`- error(attributeDecl, Diagnostics.Spread_types_may_only_be_created_from_object_types);`
`13240`		`- hasSpreadAnyType = true;`
`13241`		`- }`
	`13237`	`+ const exprType = getApparentType(checkExpression(attributeDecl.expression))`
`13242`	`13238`	`if (isTypeAny(exprType)) {`
`13243`	`13239`	`hasSpreadAnyType = true;`
`13244`	`13240`	`}`