Report CORINFO_CALLCONV_GENERIC to JIT

src/coreclr/tools/Common/JitInterface/CorInfoImpl.cs

@@ -881,6 +881,7 @@ private void Get_CORINFO_SIG_INFO(MethodSignature signature, CORINFO_SIG_INFO* s
 
             if (!signature.IsStatic) sig->callConv |= CorInfoCallConv.CORINFO_CALLCONV_HASTHIS;
             if (signature.IsExplicitThis) sig->callConv |= CorInfoCallConv.CORINFO_CALLCONV_EXPLICITTHIS;
+            if (signature.IsGeneric) sig->callConv |= CorInfoCallConv.CORINFO_CALLCONV_GENERIC;
 
             TypeDesc returnType = signature.ReturnType;
 

src/coreclr/tools/Common/TypeSystem/Common/MethodDesc.cs

@@ -23,6 +23,7 @@ public enum MethodSignatureFlags
 
         Static = 0x0010,
         ExplicitThis = 0x0020,
+        Generic = 0x0040,
     }
 
     public enum EmbeddedSignatureDataKind
@@ -138,6 +139,14 @@ public bool IsExplicitThis
             }
         }
 
+        public bool IsGeneric
+        {
+            get
+            {
+                return (_flags & MethodSignatureFlags.Generic) != 0;
+            }
+        }
+
         public int GenericParameterCount
         {
             get

src/coreclr/tools/Common/TypeSystem/Ecma/EcmaSignatureParser.cs

@@ -383,6 +383,9 @@ private MethodSignature ParseMethodSignatureImpl(bool skipEmbeddedSignatureData)
             if (header.HasExplicitThis)
                 flags |= MethodSignatureFlags.ExplicitThis;
 
+            if (header.IsGeneric)
+                flags |= MethodSignatureFlags.Generic;
+
             int arity = header.IsGeneric ? _reader.ReadCompressedInteger() : 0;
 
             int count = _reader.ReadCompressedInteger();