windows.cfg: Added support for _finite() and _finitef().

cfg/windows.cfg

@@ -5448,6 +5448,19 @@ HFONT CreateFont(
       <not-bool/>
     </arg>
   </function>
+  <!-- int _finite(double x);
+       int _finitef(float x); /* x64 and ARM/ARM64 only */ -->
+  <function name="_finite,_finitef">
+    <use-retval/>
+    <pure/>
+    <returnValue type="int"/>
+    <noreturn>false</noreturn>
+    <leak-ignore/>
+    <arg nr="1">
+      <not-uninit/>
+      <not-bool/>
+    </arg>
+  </function>
   <podtype name="LARGE_INTEGER" sign="s" size="8"/>
   <podtype name="POINTER_SIGNED" sign="s"/>
   <podtype name="POINTER_UNSIGNED" sign="u"/>