Use ts.indexOf instead of Array.prototype.indexOf

mihailik · mihailik · commit efbacb97c9d5 · 2015-11-09T09:45:57.000Z
(keep consistent with the rest of codebase, and thus enable ES3-compatibility of tsc and services)
diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
@@ -3731,7 +3731,7 @@ namespace ts {
             if (node.initializer) {
                 const signatureDeclaration = <SignatureDeclaration>node.parent;
                 const signature = getSignatureFromDeclaration(signatureDeclaration);
-                const parameterIndex = signatureDeclaration.parameters.indexOf(node);
+                const parameterIndex = ts.indexOf(signatureDeclaration.parameters, node);
                 Debug.assert(parameterIndex >= 0);
                 return parameterIndex >= signature.minArgumentCount;
             }

Original file line number	Diff line number	Diff line change
`@@ -3731,7 +3731,7 @@ namespace ts {`
`3731`	`3731`	`if (node.initializer) {`
`3732`	`3732`	`const signatureDeclaration = <SignatureDeclaration>node.parent;`
`3733`	`3733`	`const signature = getSignatureFromDeclaration(signatureDeclaration);`
`3734`		`- const parameterIndex = signatureDeclaration.parameters.indexOf(node);`
	`3734`	`+ const parameterIndex = ts.indexOf(signatureDeclaration.parameters, node);`
`3735`	`3735`	`Debug.assert(parameterIndex >= 0);`
`3736`	`3736`	`return parameterIndex >= signature.minArgumentCount;`
`3737`	`3737`	`}`