C++: Accept test changes.

Author: MathiasVP

cpp/ql/test/library-tests/ir/ir/aliased_ir.expected

@@ -3977,9 +3977,10 @@ ir.c:
 #  105|     r105_4(glval<int>) = VariableAddress[x2] : 
 #  105|     r105_5(int)        = Load[x2]            : &:r105_4, m84_8
 #  105|     r105_6(bool)       = CompareLT           : r105_3, r105_5
-#  105|     m105_7(int)        = Store[x]            : &:r105_1, r105_6
+#  105|     r105_7(int)        = Convert             : r105_6
+#  105|     m105_8(int)        = Store[x]            : &:r105_1, r105_7
 #  106|     r106_1(glval<int>) = VariableAddress[x]  : 
-#  106|     r106_2(int)        = Load[x]             : &:r106_1, m105_7
+#  106|     r106_2(int)        = Load[x]             : &:r106_1, m105_8
 #  106|     r106_3(int)        = Constant[0]         : 
 #  106|     r106_4(bool)       = CompareNE           : r106_2, r106_3
 #  106|     v106_5(void)       = ConditionalBranch   : r106_4

cpp/ql/test/library-tests/ir/ir/raw_ir.expected

@@ -3613,7 +3613,8 @@ ir.c:
 #  105|     r105_4(glval<int>) = VariableAddress[x2] : 
 #  105|     r105_5(int)        = Load[x2]            : &:r105_4, ~m?
 #  105|     r105_6(bool)       = CompareLT           : r105_3, r105_5
-#  105|     mu105_7(int)       = Store[x]            : &:r105_1, r105_6
+#  105|     r105_7(int)        = Convert             : r105_6
+#  105|     mu105_8(int)       = Store[x]            : &:r105_1, r105_7
 #  106|     r106_1(glval<int>) = VariableAddress[x]  : 
 #  106|     r106_2(int)        = Load[x]             : &:r106_1, ~m?
 #  106|     r106_3(int)        = Constant[0]         :