138 //h1 internals={} externals={undefined=0}

   139 function h1(x) {

   140     return undefined === x;

   141 }

   142 

   143 //h2 internals={} externals=null

   144 function h2(x, undefined) {

   145     return undefined === x;

   146 }

   147 

   148 //h3 internals={x=0} externals=null

   149 function h3(x) {

   150     //h3$f3_2 internals={} externals={x=0}

   151     function h3_2(undefined) {

   152 	return undefined === x;

   153     }

   154     return h3_2(17);

   155 }

   156 

   157 //h4 internals={x=0} externals=null

   158 function h4(x) {

   159     //h4$h4_2 internals={} externals={x=0}

   160     function h4_2() {

   161 	var undefined = 17;

   162 	return undefined === x;

   163     }

   164     return h4_2();

   165 }

   166 

   167 //h5 internals={x=0, undefined=0} externals=null

   168 function h5(x) {

   169     var undefined = 17;

   170     //h5$h5_2 internals={} externals={x=0, undefined=0}

   171     function h5_2() {

   172 	return undefined === x;

   173     }

   174     return h5_2();

   175 }

   176 

   177 print("21: " + h1(17) + " === false");

   178 print("22: " + h2(17) + " === false");

   179 print("23: " + h3(17) + " === true");

   180 print("24: " + h4(17) + " === true");

   181 print("25: " + h5(17) + " === true");

   182 

   183 //recompile

   184 print("26: " + h1("17") + " === false");

   185 print("27: " + h2("17") + " === false");

   186 print("28: " + h3("17") + " === false");

   187 print("29: " + h4("17") + " === false");

   188 print("30: " + h5("17") + " === false");

   189 

   190 //i1 internals={} externals={undefined=0}

   191 function i1(x) {

   192     return undefined !== x;

   193 }

   194 

   195 //i2 internals={} externals=null

   196 function i2(x, undefined) {

   197     return undefined !== x;

   198 }

   199 

   200 //i3 internals={x=0} externals=null

   201 function i3(x) {

   202     //i3$f3_2 internals={} externals={x=0}

   203     function i3_2(undefined) {

   204 	return undefined !== x;

   205     }

   206     return i3_2(17);

   207 }

   208 

   209 //i4 internals={x=0} externals=null

   210 function i4(x) {

   211     //i4$i4_2 internals={} externals={x=0}

   212     function i4_2() {

   213 	var undefined = 17;

   214 	return undefined !== x;

   215     }

   216     return i4_2();

   217 }

   218 

   219 //h5 internals={x=0, undefined=0} externals=null

   220 function i5(x) {

   221     var undefined = 17;

   222     //i5$i5_2 internals={} externals={x=0, undefined=0}

   223     function i5_2() {

   224 	return undefined !== x;

   225     }

   226     return i5_2();

   227 }

   228 

   229 print("31: " + i1(17) + " === true");

   230 print("32: " + i2(17) + " === true");

   231 print("33: " + i3(17) + " === false");

   232 print("34: " + i4(17) + " === false");

   233 print("35: " + i5(17) + " === false");

   234 

   235 //recompile

   236 print("36: " + i1("17") + " === true");

   237 print("37: " + i2("17") + " === true");

   238 print("38: " + i3("17") + " === true");

   239 print("39: " + i4("17") + " === true");

   240 print("40: " + i5("17") + " === true");