[wasm] Use a C wrapper function to calculate F64Pow.

src/assembler.cc

Index: src/assembler.cc
diff --git a/src/assembler.cc b/src/assembler.cc
index 50c12203ca54021041390dab117ba88e4d72207c..a3dacb60d91672d618105b08cdf17f4d0e2ee6d0 100644
--- a/src/assembler.cc
+++ b/src/assembler.cc
@@ -1156,6 +1156,11 @@ ExternalReference ExternalReference::f64_asin_wrapper_function(
   return ExternalReference(Redirect(isolate, FUNCTION_ADDR(f64_asin_wrapper)));
 }
 
+ExternalReference ExternalReference::wasm_float64_pow(Isolate* isolate) {
+  return ExternalReference(
+      Redirect(isolate, FUNCTION_ADDR(wasm::float64_pow_wrapper)));
+}
+
 static void f64_mod_wrapper(double* param0, double* param1) {
   WriteDoubleValue(param0,
                    modulo(ReadDoubleValue(param0), ReadDoubleValue(param1)));