Amend comment about explicitly setting catch clause variables to 'undefined'.

DanielRosenwasser · web-flow · commit 3da1a53d7ec2 · 2017-08-02T12:50:04.000-07:00
diff --git a/src/compiler/parser.ts b/src/compiler/parser.ts
@@ -4784,7 +4784,7 @@ namespace ts {
                 parseExpected(SyntaxKind.CloseParenToken);
             }
             else {
-                // Keep shape of node to not avoid degrading performance.
+                // Keep shape of node to avoid degrading performance.
                 result.variableDeclaration = undefined;
             }
 

Original file line number	Diff line number	Diff line change
`@@ -4784,7 +4784,7 @@ namespace ts {`
`4784`	`4784`	`parseExpected(SyntaxKind.CloseParenToken);`
`4785`	`4785`	`}`
`4786`	`4786`	`else {`
`4787`		`- // Keep shape of node to not avoid degrading performance.`
	`4787`	`+ // Keep shape of node to avoid degrading performance.`
`4788`	`4788`	`result.variableDeclaration = undefined;`
`4789`	`4789`	`}`
`4790`	`4790`