ASSERT/ASSERT_TS: Add more output in recursive assertion case

The error should be really rare, but in case it bites us, it helps to have
some more info. We also do use the direct functions are we want to avoid
any potential for more asssertions.

Packages/MIES/MIES_Utilities.ipf

@@ -114,6 +114,8 @@ Function ASSERT(variable var, string errorMsg, [variable extendedOutput])
 
 			// Happens e.g. when ASSERT is encounterd in cleanup functions
 			print "Double Assertion Fail encountered !"
+			print errorMsg
+			print GetRTStackInfo(3)
 
 			if(doCallDebugger)
 				ControlWindowToFront()
@@ -239,6 +241,8 @@ threadsafe Function ASSERT_TS(variable var, string errorMsg, [variable extendedO
 		if(IsFunctionCalledRecursively())
 
 			print "Double threadsafe assertion Fail encountered !"
+			print errorMsg
+			print GetRTStackInfo(3)
 
 			AbortOnValue 1, 1
 		endif