Fix linting issue

ahejlsberg · ahejlsberg · commit f0bf72fe34ba · 2019-09-24T08:57:01.000-07:00
diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
@@ -33378,7 +33378,7 @@ namespace ts {
 
                 // Modifiers are never allowed on properties except for 'async' on a method declaration
                 if (prop.modifiers) {
-                    for (const mod of prop.modifiers!) { // TODO: GH#19955
+                    for (const mod of prop.modifiers) {
                         if (mod.kind !== SyntaxKind.AsyncKeyword || prop.kind !== SyntaxKind.MethodDeclaration) {
                             grammarErrorOnNode(mod, Diagnostics._0_modifier_cannot_be_used_here, getTextOfNode(mod));
                         }

Original file line number	Diff line number	Diff line change
`@@ -33378,7 +33378,7 @@ namespace ts {`
`33378`	`33378`
`33379`	`33379`	`// Modifiers are never allowed on properties except for 'async' on a method declaration`
`33380`	`33380`	`if (prop.modifiers) {`
`33381`		`- for (const mod of prop.modifiers!) { // TODO: GH#19955`
	`33381`	`+ for (const mod of prop.modifiers) {`
`33382`	`33382`	`if (mod.kind !== SyntaxKind.AsyncKeyword \|\| prop.kind !== SyntaxKind.MethodDeclaration) {`
`33383`	`33383`	`grammarErrorOnNode(mod, Diagnostics._0_modifier_cannot_be_used_here, getTextOfNode(mod));`
`33384`	`33384`	`}`