Add test for catch block without variable

tests/baselines/reference/asyncWithVarShadowing_es6.js

@@ -210,7 +210,17 @@ async function fn39(x) {
         var x;
         break foo;
     }
-}
+}
+
+async function fn40(x) {
+    try {
+
+    }
+    catch {
+        var x;
+    }
+}
+
 
 //// [asyncWithVarShadowing_es6.js]
 function fn1(x) {
@@ -476,3 +486,12 @@ function fn39(x) {
     });
     var x;
 }
+function fn40(x) {
+    return __awaiter(this, void 0, void 0, function* () {
+        try {
+        }
+        catch (_a) {
+        }
+    });
+    var x;
+}

tests/baselines/reference/asyncWithVarShadowing_es6.symbols

@@ -416,3 +416,17 @@ async function fn39(x) {
         break foo;
     }
 }
+
+async function fn40(x) {
+>fn40 : Symbol(fn40, Decl(asyncWithVarShadowing_es6.ts, 211, 1))
+>x : Symbol(x, Decl(asyncWithVarShadowing_es6.ts, 213, 20), Decl(asyncWithVarShadowing_es6.ts, 218, 11))
+
+    try {
+
+    }
+    catch {
+        var x;
+>x : Symbol(x, Decl(asyncWithVarShadowing_es6.ts, 213, 20), Decl(asyncWithVarShadowing_es6.ts, 218, 11))
+    }
+}
+

tests/baselines/reference/asyncWithVarShadowing_es6.types

@@ -423,3 +423,17 @@ async function fn39(x) {
 >foo : any
     }
 }
+
+async function fn40(x) {
+>fn40 : (x: any) => Promise<void>
+>x : any
+
+    try {
+
+    }
+    catch {
+        var x;
+>x : any
+    }
+}
+

tests/cases/conformance/async/es6/asyncWithVarShadowing_es6.ts

@@ -211,4 +211,13 @@ async function fn39(x) {
         var x;
         break foo;
     }
-}
+}
+
+async function fn40(x) {
+    try {
+
+    }
+    catch {
+        var x;
+    }
+}