Skip some conditional deopts for Div/Mul when all uses are truncating

test/mjsunit/regress/regress-2132.js

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 // Flags: --allow-natives-syntax
 
-var non_const_true = true;
-
-function f() {
-  return (non_const_true || true && g());
+function mul(x, y) {
+  return (x * y) | 0;
 }
 
-function g() {
-  for (;;) {}
+mul(0, 0);
+mul(0, 0);
+%OptimizeFunctionOnNextCall(mul);
+assertEquals(0, mul(0, -1));
+assertTrue(%GetOptimizationStatus(mul) != 2);
+
+function div(x, y) {
+  return (x / y) | 0;
 }
 
-assertTrue(f());
-assertTrue(f());
-%OptimizeFunctionOnNextCall(f);
-assertTrue(f());
+div(4, 2);
+div(4, 2);
+%OptimizeFunctionOnNextCall(div);
+assertEquals(1, div(5, 3));
+assertTrue(%GetOptimizationStatus(div) != 2);