Normalize application of `typeof` operator

Consistently use the `typeof` operator without the grouping operator
(and include one explicit test to ensure the validity of this pattern
generally).

test/language/expressions/typeof/built-in-functions.js

@@ -11,13 +11,13 @@ description: Checking types of parseInt and Math.exp
 ---*/
 
 assert.sameValue(
-  typeof(Math.exp),
+  typeof Math.exp,
   "function",
-  '#1: typeof(Math.exp)!=="function" '+typeof(Math.exp)
+  '#1: typeof Math.exp!=="function" '+typeof Math.exp
 );
 
 assert.sameValue(
-  typeof(parseInt),
+  typeof parseInt,
   "function",
-  '#2: typeof(parseInt)!=="function" '+typeof(parseInt)
+  '#2: typeof parseInt!=="function" '+typeof parseInt
 );

test/language/expressions/typeof/syntax.js

@@ -69,3 +69,9 @@ assert.sameValue(
   "number",
   '#10: var x = 0; typeof\\u0009\\u000B\\u000C\\u0020\\u00A0\\u000A\\u000D\\u2028\\u2029x; x === "number". Actual: ' + (x)
 );
+
+assert.sameValue(
+  eval("typeof(0)"),
+  "number",
+  'applied with grouping operator enclosing operand'
+);