DBG: error message improvement in cbDebugPause + minor project fixes

src/dbg/commands/cmd-debug-control.cpp

@@ -320,9 +320,14 @@ bool cbDebugPause(int argc, char* argv[])
         dputs(QT_TRANSLATE_NOOP("DBG", "Program is not running"));
         return false;
     }
-    if(SuspendThread(hActiveThread) == -1)
+    // Interesting behavior found by JustMagic, if the active thread is suspended pause would fail
+    auto previousSuspendCount = SuspendThread(hActiveThread);
+    if(previousSuspendCount != 0)
     {
-        dputs(QT_TRANSLATE_NOOP("DBG", "Error suspending thread"));
+        if(previousSuspendCount != -1)
+            ResumeThread(hActiveThread);
+        dputs(QT_TRANSLATE_NOOP("DBG", "The active thread is suspended, switch to a running thread to pause the process"));
+        // TODO: perhaps inject an INT3 in the process as an alternative to failing?
         return false;
     }
     duint CIP = GetContextDataEx(hActiveThread, UE_CIP);

src/dbg/symbolundecorator.h

@@ -57,12 +57,6 @@ enum
     X_UNDNAME_NO_PTR64 = 0x20000, //Does not include ptr64 in output.
 };
 
-#if _MSC_VER == 1800 || _MSC_VER == 1900 || (_MSC_VER >= 1910 && _MSC_VER <= 1923)
-// Tested compiler version
-#else
-#error unDNameEx is undocumented and possibly unsupported on your runtime! Uncomment this line if you understand the risks and want continue regardless...
-#endif //_MSC_VER
-
 //undname.cxx
 extern "C" pchar_t __cdecl __unDNameEx(_Out_opt_z_cap_(maxStringLength) pchar_t outputString,
                                        pcchar_t name,

src/dbg/x64dbg_dbg.vcxproj

@@ -299,7 +299,6 @@
   <PropertyGroup Label="Globals">
     <ProjectGuid>{E6548308-401E-3A8A-5819-905DB90522A6}</ProjectGuid>
     <Keyword>Win32Proj</Keyword>
-    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">