Fix parameter signess

Author: josesimoes

src/CLR/Core/TypeSystem.cpp

@@ -4575,7 +4575,7 @@ bool CLR_RT_Assembly::FindGenericParam(CLR_INDEX typeSpecIndex, CLR_RT_GenericPa
 
 bool CLR_RT_Assembly::FindGenericParamAtTypeSpec(
     CLR_UINT32 typeSpecIndex,
-    CLR_UINT32 genericParameterPosition,
+    CLR_INT32 genericParameterPosition,
     CLR_RT_TypeDef_Index &typeDef,
     NanoCLRDataType &dataType)
 {
@@ -4616,7 +4616,7 @@ bool CLR_RT_Assembly::FindGenericParamAtTypeSpec(
 
 bool CLR_RT_Assembly::FindGenericParamAtMethodDef(
     CLR_RT_MethodDef_Instance md,
-    CLR_UINT32 genericParameterPosition,
+    CLR_INT32 genericParameterPosition,
     CLR_RT_GenericParam_Index &index)
 {
     NATIVE_PROFILE_CLR_CORE();

src/CLR/Include/nanoCLR_Runtime.h

@@ -1424,12 +1424,12 @@ struct CLR_RT_Assembly : public CLR_RT_HeapBlock_Node // EVENT HEAP - NO RELOCAT
     bool FindTypeSpec(const CLR_PMETADATA sig, CLR_RT_TypeSpec_Index &index);
     bool FindGenericParamAtTypeSpec(
         CLR_UINT32 typeSpecIndex,
-        CLR_UINT32 genericParameterPosition,
+        CLR_INT32 genericParameterPosition,
         CLR_RT_TypeDef_Index &typeDef,
         NanoCLRDataType &dataType);
     bool FindGenericParamAtMethodDef(
         CLR_RT_MethodDef_Instance md,
-        CLR_UINT32 genericParameterPosition,
+        CLR_INT32 genericParameterPosition,
         CLR_RT_GenericParam_Index &index);
     bool FindGenericParam(CLR_INDEX typeSpecIndex, CLR_RT_GenericParam_Index &index);
     bool FindMethodSpecFromTypeSpec(CLR_INDEX typeSpecIndex, CLR_RT_MethodSpec_Index &index);