Expose SIMD.Float32x4 type to Javascript.

test/mjsunit/object-toprimitive.js

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+// Flags: --harmony-simd

[rossberg, 2015/07/10 11:38:20]

If this test does not use SIMDs then this flag should not be needed. If the test
nevertheless fails without setting the flag, then that's a (serious) bug. You
are probably missing places where you need to make code paths dependent on the
flag.

[bbudge, 2015/07/10 13:21:17]

I don't understand the comment. This test does add a test for SIMD.float32x4,
below. Do you think I should remove this test, or make it conditional on SIMD
being defined?

[rossberg, 2015/07/10 13:25:45]

Ah, sorry, I somehow got lost in the diffs. Please ignore this comment and the
other one. :)

+
 // Test the ToPrimitive internal function used by ToNumber/ToString.
 // Does it [[Get]] and [[Call]] the object's toString and valueOf properties
 // correctly. Specifically, does it call [[Get]] only once per property.
 
 var o1 = { toString: function() { return 42; },
            valueOf: function() { return "37"; } };
 var n1 = Number(o1);
 var s1 = String(o1);
 assertTrue(typeof n1 == "number");
 assertTrue(typeof s1 == "string");
@@ skipping 59 matching lines @@
 assertEquals(["gts", "gvo"], trace);
 
 toStringFunc = traceToString;
 toStringValue = "87";
 trace = [];
 var nt = Number(ot);
 assertEquals(87, nt);
 assertEquals(["gvo", "gts", "ts"], trace);
 
 assertThrows('Number(Symbol())', TypeError);
+
+assertThrows('Number(SIMD.float32x4(1, 2, 3, 4))', TypeError);