[builtins] Migrate Math.log to TurboFan.

src/compiler/typer.cc

Index: src/compiler/typer.cc
diff --git a/src/compiler/typer.cc b/src/compiler/typer.cc
index 615b3711a5820c4ba3de34dde9a06aa8daea7735..897e21a5a5f74b99050cf9828c205d6e93f4073e 100644
--- a/src/compiler/typer.cc
+++ b/src/compiler/typer.cc
@@ -1779,6 +1779,8 @@ Type* Typer::Visitor::TypeNumberFloor(Node* node) {
   return TypeUnaryOp(node, NumberFloor);
 }
 
+Type* Typer::Visitor::TypeNumberLog(Node* node) { return Type::Number(); }
+
 Type* Typer::Visitor::TypeNumberRound(Node* node) {
   return TypeUnaryOp(node, NumberRound);
 }
@@ -2477,6 +2479,7 @@ Type* Typer::Visitor::TypeFloat64Abs(Node* node) {
   return Type::Number();
 }
 
+Type* Typer::Visitor::TypeFloat64Log(Node* node) { return Type::Number(); }
 
 Type* Typer::Visitor::TypeFloat64Sqrt(Node* node) { return Type::Number(); }