add tests

tests/cases/conformance/types/any/narrowExceptionVariableInCatchClause.ts

@@ -0,0 +1,23 @@
+declare function isFooError(x: any): x is { type: 'foo'; dontPanic(); };
+
+function tryCatch() {
+    try {
+        // do stuff...
+    }
+    catch (err) { // err is implicitly 'any' and cannot be annotated
+
+        if (isFooError(err)) {
+            err.dontPanic(); // OK
+            err.doPanic(); // ERROR: Property 'doPanic' does not exist on type '{...}'
+        }
+
+        else if (err instanceof Error) {
+            err.message;
+            err.massage; // ERROR: Property 'massage' does not exist on type 'Error'
+        }
+
+        else {
+            throw err;
+        }
+    }
+}

tests/cases/conformance/types/any/narrowFromAnyWithInstanceof.ts

@@ -0,0 +1,23 @@
+declare var x: any;
+
+if (x instanceof Function) { // 'any' is not narrowed when target type is 'Function'
+    x();
+    x(1, 2, 3);
+    x("hello!");
+    x.prop;
+}
+
+if (x instanceof Object) { // 'any' is not narrowed when target type is 'Object'
+    x.method();
+    x();
+}
+
+if (x instanceof Error) { // 'any' is narrowed to types other than 'Function'/'Object'
+    x.message;
+    x.mesage;
+}
+
+if (x instanceof Date) {
+    x.getDate();
+    x.getHuors();
+}

tests/cases/conformance/types/any/narrowFromAnyWithTypePredicate.ts

@@ -0,0 +1,34 @@
+declare var x: any;
+declare function isFunction(x): x is Function;
+declare function isObject(x): x is Object;
+declare function isAnything(x): x is {};
+declare function isError(x): x is Error;
+declare function isDate(x): x is Date;
+
+
+if (isFunction(x)) { // 'any' is not narrowed when target type is 'Function'
+    x();
+    x(1, 2, 3);
+    x("hello!");
+    x.prop;
+}
+
+if (isObject(x)) { // 'any' is not narrowed when target type is 'Object'
+    x.method();
+    x();
+}
+
+if (isAnything(x)) { // 'any' is narrowed to types other than 'Function'/'Object' (including {})
+    x.method();
+    x();
+}
+
+if (isError(x)) { 
+    x.message;
+    x.mesage;
+}
+
+if (isDate(x)) {
+    x.getDate();
+    x.getHuors();
+}