[builtins] Unify most of the remaining Math builtins.

src/parsing/parser.cc

Index: src/parsing/parser.cc
diff --git a/src/parsing/parser.cc b/src/parsing/parser.cc
index 24df10cb9d7a4021d1541c90c77e09caee97ed6a..0f947ac5e60bba11cb5b9cfbfe2ea6e9ab40e36a 100644
--- a/src/parsing/parser.cc
+++ b/src/parsing/parser.cc
@@ -5782,7 +5782,7 @@ Expression* Parser::RewriteExponentiation(Expression* left, Expression* right,
   ZoneList<Expression*>* args = new (zone()) ZoneList<Expression*>(2, zone());
   args->Add(left, zone());
   args->Add(right, zone());
-  return factory()->NewCallRuntime(Context::MATH_POW_METHOD_INDEX, args, pos);
+  return factory()->NewCallRuntime(Context::MATH_POW_INDEX, args, pos);
 }
 
 Expression* Parser::RewriteAssignExponentiation(Expression* left,
@@ -5799,7 +5799,7 @@ Expression* Parser::RewriteAssignExponentiation(Expression* left,
     args->Add(left, zone());
     args->Add(right, zone());
     Expression* call =
-        factory()->NewCallRuntime(Context::MATH_POW_METHOD_INDEX, args, pos);
+        factory()->NewCallRuntime(Context::MATH_POW_INDEX, args, pos);
     return factory()->NewAssignment(Token::ASSIGN, result, call, pos);
   } else if (left->IsProperty()) {
     Property* prop = left->AsProperty();
@@ -5817,7 +5817,7 @@ Expression* Parser::RewriteAssignExponentiation(Expression* left,
               zone());
     args->Add(right, zone());
     Expression* call =
-        factory()->NewCallRuntime(Context::MATH_POW_METHOD_INDEX, args, pos);
+        factory()->NewCallRuntime(Context::MATH_POW_INDEX, args, pos);
     Expression* target = factory()->NewProperty(
         factory()->NewVariableProxy(temp_obj),
         factory()->NewVariableProxy(temp_key), kNoSourcePosition);