remove redundant parentheses + typo

Author: soheilshahrouz

libs/libarchfpga/src/physical_types.cpp

@@ -76,8 +76,8 @@ void t_rr_switch_inf::set_type(SwitchType type_val) {
 }
 
 static bool switch_type_is_buffered(SwitchType type) {
-    //Muxes and Tristates isolate thier input and output into
-    //seperate DC connected sub-circuits
+    //Muxes and Tristates isolate their input and output into
+    //separate DC connected sub-circuits
     return type == SwitchType::MUX
            || type == SwitchType::TRISTATE
            || type == SwitchType::BUFFER;

libs/libarchfpga/src/read_fpga_interchange_arch.cpp

@@ -2089,7 +2089,7 @@ struct ArchReader {
         // Create constant complex block
         t_logical_block_type block;
 
-        block.name = (const_block_;
+        block.name = const_block_;
         block.index = ltypes_.size();
 
         auto pb_type = new t_pb_type;