Reland "Implement trigonometric functions using a fdlibm port."

test/mjsunit/debug-script.js

Index: test/mjsunit/debug-script.js
diff --git a/test/mjsunit/debug-script.js b/test/mjsunit/debug-script.js
index 3a4361a511fdcaff61a7008e481b8c083754d016..54e80e07a095c162cebb1b261dad1aaf5777f858 100644
--- a/test/mjsunit/debug-script.js
+++ b/test/mjsunit/debug-script.js
@@ -59,7 +59,7 @@ for (i = 0; i < scripts.length; i++) {
 }
 
 // This has to be updated if the number of native scripts change.
-assertTrue(named_native_count == 22 || named_native_count == 23);
+assertTrue(named_native_count == 23 || named_native_count == 24);
 // Only the 'gc' extension is loaded.
 assertEquals(1, extension_count);
 // This script and mjsunit.js has been loaded.  If using d8, d8 loads