[builtins] Migrate Math.hypot() to C++ builtins.

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index 6798b82cf9436b2757e62cad35c0d1e8d0e0c2c6..7b33af9febea66f16461970bfa31bd9265ac7378 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -6737,7 +6737,8 @@ class Script: public Struct {
   V(Math, imul, MathImul)                                   \
   V(Math, clz32, MathClz32)                                 \
   V(Math, fround, MathFround)                               \
-  V(Math, trunc, MathTrunc)
+  V(Math, trunc, MathTrunc)                                 \
+  V(Math, hypot, MathHypot)

[Benedikt Meurer, 2016/07/01 03:41:20]

You don't need to add it here. This is only used to recognize the function in
the optimizing compilers, but since we don't optimize it in any ways, it doesn't
have to be on this list.

 
 #define ATOMIC_FUNCTIONS_WITH_ID_LIST(V) \
   V(Atomics, load, AtomicsLoad)          \