Fix bad parameter comment (microsoft#17496)

Andy · web-flow · commit 58769e1dab3c · 2017-07-28T15:44:13.000-07:00
diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
@@ -17598,7 +17598,7 @@ namespace ts {
                 }
 
                 if (functionFlags & FunctionFlags.Generator) {
-                    const expressionType = checkExpressionCached(node.expression, /*contextualMapper*/ undefined);
+                    const expressionType = checkExpressionCached(node.expression);
                     let expressionElementType: Type;
                     const nodeIsYieldStar = !!node.asteriskToken;
                     if (nodeIsYieldStar) {

Original file line number	Diff line number	Diff line change
`@@ -17598,7 +17598,7 @@ namespace ts {`
`17598`	`17598`	`}`
`17599`	`17599`
`17600`	`17600`	`if (functionFlags & FunctionFlags.Generator) {`
`17601`		`- const expressionType = checkExpressionCached(node.expression, /contextualMapper/ undefined);`
	`17601`	`+ const expressionType = checkExpressionCached(node.expression);`
`17602`	`17602`	`let expressionElementType: Type;`
`17603`	`17603`	`const nodeIsYieldStar = !!node.asteriskToken;`
`17604`	`17604`	`if (nodeIsYieldStar) {`