Fix then handling of the (oversized) integer literal -0x8000000000000000.

FossilOrigin-Name: 3816bb415ecfd4f36430d0fcbc878e382975de60
diff --git a/src/expr.c b/src/expr.c
index 2f7deee..1ad1667 100644
--- a/src/expr.c
+++ b/src/expr.c
@@ -2942,22 +2942,22 @@
     const char *z = pExpr->u.zToken;
     assert( z!=0 );
     c = sqlite3DecOrHexToI64(z, &value);
-    if( c==0 || (c==2 && negFlag) ){
-      if( negFlag ){ value = c==2 ? SMALLEST_INT64 : -value; }
-      sqlite3VdbeAddOp4Dup8(v, OP_Int64, 0, iMem, 0, (u8*)&value, P4_INT64);
-    }else{
+    if( c==1 || (c==2 && !negFlag) || (negFlag && value==SMALLEST_INT64)){
 #ifdef SQLITE_OMIT_FLOATING_POINT
       sqlite3ErrorMsg(pParse, "oversized integer: %s%s", negFlag ? "-" : "", z);
 #else
 #ifndef SQLITE_OMIT_HEX_INTEGER
       if( sqlite3_strnicmp(z,"0x",2)==0 ){
-        sqlite3ErrorMsg(pParse, "hex literal too big: %s", z);
+        sqlite3ErrorMsg(pParse, "hex literal too big: %s%s", negFlag?"-":"",z);
       }else
 #endif
       {
         codeReal(v, z, negFlag, iMem);
       }
 #endif
+    }else{
+      if( negFlag ){ value = c==2 ? SMALLEST_INT64 : -value; }
+      sqlite3VdbeAddOp4Dup8(v, OP_Int64, 0, iMem, 0, (u8*)&value, P4_INT64);
     }
   }
 }