[wasm] Make wasm info available on the stack trace

src/messages.h

Index: src/messages.h
diff --git a/src/messages.h b/src/messages.h
index caf1200ef8257f55d78bea730af655baff1caf75..89f4d82d2ac29833648bce7751f52b0ebabc0d83 100644
--- a/src/messages.h
+++ b/src/messages.h
@@ -59,13 +59,17 @@ class CallSite {
   bool IsEval();
   bool IsConstructor();
 
-  bool IsValid() { return !fun_.is_null(); }
+  bool IsJavaScript() { return !fun_.is_null(); }
+  bool IsWasm() { return !wasm_obj_.is_null(); }
+  bool IsValid() { return IsJavaScript() || IsWasm(); }
 
  private:
   Isolate* isolate_;
   Handle<Object> receiver_;
   Handle<JSFunction> fun_;
-  int32_t pos_;
+  int32_t pos_ = -1;
+  Handle<Object> wasm_obj_;
+  uint32_t wasm_func_index_ = static_cast<uint32_t>(-1);
 };
 
 #define MESSAGE_TEMPLATES(T)                                                   \
@@ -96,7 +100,7 @@ class CallSite {
   T(CalledOnNonObject, "% called on non-object")                               \
   T(CalledOnNullOrUndefined, "% called on null or undefined")                  \
   T(CallSiteExpectsFunction,                                                   \
-    "CallSite expects function as second argument, got %")                     \
+    "CallSite expects function or number as second argument, got %")           \
   T(CallSiteMethod, "CallSite method % expects CallSite as receiver")          \
   T(CannotConvertToPrimitive, "Cannot convert object to primitive value")      \
   T(CannotPreventExt, "Cannot prevent extensions")                             \