[lldb-mi] Remove use of dialog box

Summary:
This really is only implemented on Windows, and it requires us to pull
in User32. This was only useful when debugging on lldb-mi on Windows, and there
doesn't seem to be a good reason why using a dialog box is better than what
exists for other platforms.

Reviewers: zturner, jingham, compnerd

Subscribers: ki.stfu

Differential Revision: https://reviews.llvm.org/D56755

llvm-svn: 351276

lldb/tools/lldb-mi/MIDriverMain.cpp

@@ -165,11 +165,7 @@ bool DriverSystemShutdown(const bool vbAppExitOk) {
 //--
 int main(int argc, char const *argv[]) {
 #if MICONFIG_DEBUG_SHOW_ATTACH_DBG_DLG
-#ifdef _WIN32
-  CMIUtilDebug::ShowDlgWaitForDbgAttach();
-#else
   CMIUtilDebug::WaitForDbgAttachInfinteLoop();
-#endif //  _WIN32
 #endif // MICONFIG_DEBUG_SHOW_ATTACH_DBG_DLG
 
   llvm::StringRef ToolName = argv[0];

lldb/tools/lldb-mi/MIUtilDebug.cpp

@@ -37,25 +37,6 @@ CMIUtilDebug::CMIUtilDebug() {}
 //--
 CMIUtilDebug::~CMIUtilDebug() {}
 
-//++
-//------------------------------------------------------------------------------------
-// Details: Show a dialog to the process/application halts. It gives the
-// opportunity to
-//          attach a debugger.
-// Type:    Static method.
-// Args:    None.
-// Return:  None.
-// Throws:  None.
-//--
-void CMIUtilDebug::ShowDlgWaitForDbgAttach() {
-  const CMIUtilString strCaption(CMIDriver::Instance().GetAppNameShort());
-#ifdef _WIN32
-  ::MessageBoxA(NULL, "Attach your debugger now", strCaption.c_str(), MB_OK);
-#else
-// ToDo: Implement other platform version of an Ok to continue dialog box
-#endif // _WIN32
-}
-
 //++
 //------------------------------------------------------------------------------------
 // Details: Temporarily stall the process/application to give the programmer the

lldb/tools/lldb-mi/MIUtilDebug.h

@@ -24,7 +24,6 @@ class CMICmnLog;
 class CMIUtilDebug {
   // Statics:
 public:
-  static void ShowDlgWaitForDbgAttach();
   static void WaitForDbgAttachInfinteLoop();
 
   // Methods: