Do not remove HAdd with zero if the other operand is a double.

test/mjsunit/regress/regress-add-minus-zero.js

Index: test/mjsunit/regress/regress-add-minus-zero.js
diff --git a/test/mjsunit/regress/regress-crbug-242870.js b/test/mjsunit/regress/regress-add-minus-zero.js
similarity index 90%
copy from test/mjsunit/regress/regress-crbug-242870.js
copy to test/mjsunit/regress/regress-add-minus-zero.js
index 7183375ca811cedc81c870d34e694e98cf727f9b..0b4af754245f17b063b33f6afa517bffe1bed699 100644
--- a/test/mjsunit/regress/regress-crbug-242870.js
+++ b/test/mjsunit/regress/regress-add-minus-zero.js
@@ -27,17 +27,12 @@
 
 // Flags: --allow-natives-syntax
 
-var non_const_true = true;
+var o = { a: 0 };
 
-function f() {
-  return (non_const_true || true && g());
-}
+function f(x) { return -o.a + 0; };
 
-function g() {
-  for (;;) {}
-}
-
-assertTrue(f());
-assertTrue(f());
+assertEquals("Infinity", String(1/f()));
+assertEquals("Infinity", String(1/f()));
 %OptimizeFunctionOnNextCall(f);
-assertTrue(f());
+assertEquals("Infinity", String(1/f()));
+