[inspector] fixed all shorten-64-to-32 warnings

src/inspector/V8DebuggerAgentImpl.cpp

Index: src/inspector/V8DebuggerAgentImpl.cpp
diff --git a/src/inspector/V8DebuggerAgentImpl.cpp b/src/inspector/V8DebuggerAgentImpl.cpp
index 58bcd610c3cdcf163be85753bffea2f7de8b9380..63035d1f2e6a35bbbda70fb8e6cb31d19b5221d5 100644
--- a/src/inspector/V8DebuggerAgentImpl.cpp
+++ b/src/inspector/V8DebuggerAgentImpl.cpp
@@ -934,7 +934,7 @@ std::unique_ptr<Array<CallFrame>> V8DebuggerAgentImpl::currentCallFrames(
                   : nullptr;
 
     String16 callFrameId =
-        RemoteCallFrameId::serialize(contextId, frameOrdinal);
+        RemoteCallFrameId::serialize(contextId, static_cast<int>(frameOrdinal));
     if (hasInternalError(
             errorString,
             !details
@@ -1006,9 +1006,11 @@ std::unique_ptr<Array<CallFrame>> V8DebuggerAgentImpl::currentCallFrames(
         return Array<CallFrame>::create();
     }
 
-    if (hasInternalError(errorString,
-                         !objects->Set(debuggerContext, frameOrdinal, details)
-                              .FromMaybe(false)))
+    if (hasInternalError(
+            errorString,
+            !objects
+                 ->Set(debuggerContext, static_cast<int>(frameOrdinal), details)
+                 .FromMaybe(false)))
       return Array<CallFrame>::create();
   }