Fixes to prevent failing tests after merging master

* Add missing quote properties to AST_ObjectKeyVal
 * Avoid test results being interpret as directives

test/compress/harmony.js

@@ -73,9 +73,9 @@ typeof_arrow_functions: {
         evaluate: true
     }
     input: {
-        typeof (x) => null;
+        var foo = typeof (x) => null;
     }
-    expect_exact: "\"function\";"
+    expect_exact: "var foo=\"function\";"
 }
 
 template_strings: {

test/compress/issue-1001.js

@@ -1,8 +1,8 @@
 parenthesis_strings_in_parenthesis: {
     input: {
-        ('(');
+        var foo = ('(');
         a(')');
 
     }
-    expect_exact: '"(";a(")");'
+    expect_exact: 'var foo="(";a(")");'
 }