Rename typedef for Void to disambiguate with TI SimpleLink SDK type

Author: josesimoes

src/CLR/Core/TypeSystem.cpp

@@ -598,7 +598,7 @@ HRESULT CLR_RT_SignatureParser::Advance(Element &res)
                         NANOCLR_SET_AND_LEAVE(S_OK);
 
                     case DATATYPE_VOID:
-                        res.Class = g_CLR_RT_WellKnownTypes.Void;
+                        res.Class = g_CLR_RT_WellKnownTypes.n_Void;
                         NANOCLR_SET_AND_LEAVE(S_OK);
 
                     case DATATYPE_GENERICINST:
@@ -3983,7 +3983,7 @@ static const TypeIndexLookup c_TypeIndexLookup[] = {
     TIL("System",                                   "TimeSpan",                         TimeSpan),
     TIL("System",                                   "String",                           String),
 
-    TIL("System",                                   "Void",                             Void),
+    TIL("System",                                   "Void",                             n_Void),
     TIL("System",                                   "Object",                           Object),
     TIL("System",                                   "ValueType",                        ValueType),
     TIL("System",                                   "Enum",                             Enum),

src/CLR/Include/nanoCLR_Runtime.h

@@ -1685,7 +1685,8 @@ struct CLR_RT_WellKnownTypes
     CLR_RT_TypeDef_Index TimeSpan;
     CLR_RT_TypeDef_Index String;
 
-    CLR_RT_TypeDef_Index Void;
+    // need this prefix to disambiguate type in TI plaform
+    CLR_RT_TypeDef_Index n_Void;
     CLR_RT_TypeDef_Index Object;
     CLR_RT_TypeDef_Index ValueType;
     CLR_RT_TypeDef_Index Enum;