[builtins] Unify Atanh, Cbrt and Expm1 as exports from flibm.

src/external-reference-table.cc

Index: src/external-reference-table.cc
diff --git a/src/external-reference-table.cc b/src/external-reference-table.cc
index 5d280bfd87234f33353f9b0d148fd9d7f2d6c6d5..8a0014befbb7822a681dbf7f8f7881fab517cf33 100644
--- a/src/external-reference-table.cc
+++ b/src/external-reference-table.cc
@@ -71,8 +71,12 @@ ExternalReferenceTable::ExternalReferenceTable(Isolate* isolate) {
       "base::ieee754::atan");
   Add(ExternalReference::ieee754_atan2_function(isolate).address(),
       "base::ieee754::atan2");
+  Add(ExternalReference::ieee754_atanh_function(isolate).address(),
+      "base::ieee754::atanh");
   Add(ExternalReference::ieee754_exp_function(isolate).address(),
       "base::ieee754::exp");
+  Add(ExternalReference::ieee754_expm1_function(isolate).address(),
+      "base::ieee754::expm1");
   Add(ExternalReference::ieee754_log_function(isolate).address(),
       "base::ieee754::log");
   Add(ExternalReference::ieee754_log1p_function(isolate).address(),
@@ -81,6 +85,8 @@ ExternalReferenceTable::ExternalReferenceTable(Isolate* isolate) {
       "base::ieee754::log2");
   Add(ExternalReference::ieee754_log10_function(isolate).address(),
       "base::ieee754::log10");
+  Add(ExternalReference::ieee754_cbrt_function(isolate).address(),
+      "base::ieee754::cbrt");
   Add(ExternalReference::store_buffer_top(isolate).address(),
       "store_buffer_top");
   Add(ExternalReference::address_of_the_hole_nan().address(), "the_hole_nan");