Corrected frame size for 32-bit INT gates, fixed BT/BTC/BTR/BTS instructions for bit indexes > 31, and disabled the Debugger's IF clear warning when IOPL < CPL

modules/pcjs/lib/x86cpu.js

@@ -3922,6 +3922,7 @@ X86CPU.prototype.popWord = function()
  */
 X86CPU.prototype.pushData = function(d, size)
 {
+    this.assert(size == 2 || size == 4);
     this.regLSP = (this.regLSP - size)|0;
     /*
      * Properly comparing regLSP to regLSPLimitLow would normally require coercing both to unsigned