Fix tests in 'regression' for the current Yosys revision.

regression/issue_00059/testbench.v

@@ -13,10 +13,11 @@ module testbench;
 
         $display("OKAY");
     end
-
+	wire c;
 
     top uut (
-        .b (clk )
+        .b (clk ),
+        .c (c)
     );
 
 endmodule

regression/issue_00059/top.v

-module top(b);
+module top(b,c);
 input b;
+output c;
+
+assign c = b;
 endmodule

regression/issue_00067/testbench.v

@@ -13,10 +13,11 @@ module testbench;
 
         $display("OKAY");
     end
-
+	wire c;
 
     top uut (
-        .b (clk )
+        .b (clk ),
+        .c (c)
     );
 
 endmodule

regression/issue_00067/top.v

-module top(b);
+module top(b,c);
 input b;
+output c;
+
+assign c = b;
 endmodule

regression/issue_00071/testbench.v

@@ -13,10 +13,11 @@ module testbench;
 
         $display("OKAY");
     end
-
+	wire c;
 
     top uut (
-        .b (clk )
+        .b (clk ),
+        .c (c)
     );
 
 endmodule

regression/issue_00071/top.v

-module top(b);
+module top(b,c);
 input b;
+output c;
+
+assign c = b;
 endmodule

regression/issue_00078/testbench.v

@@ -13,10 +13,11 @@ module testbench;
 
         $display("OKAY");
     end
-
+	wire c;
 
     top uut (
-        .b (clk )
+        .b (clk ),
+        .c (c)
     );
 
 endmodule

regression/issue_00078/top.v

-module top(b);
+module top(b,c);
 input b;
+output c;
+
+assign c = b;
 endmodule

regression/issue_00081/testbench.v

@@ -13,10 +13,11 @@ module testbench;
 
         $display("OKAY");
     end
-
+	wire c;
 
     top uut (
-        .b (clk )
+        .b (clk ),
+        .c (c)
     );
 
 endmodule

regression/issue_00081/top.v

-module top(b);
+module top(b,c);
 input b;
+output c;
+
+assign c = b;
 endmodule

regression/issue_00085/testbench.v

@@ -13,10 +13,11 @@ module testbench;
 
         $display("OKAY");
     end
-
+	wire c;
 
     top uut (
-        .b (clk )
+        .b (clk ),
+        .c (c)
     );
 
 endmodule

regression/issue_00085/top.v

-module top(b);
+module top(b,c);
 input b;
+output c;
+
+assign c = b;
 endmodule

regression/issue_00086/testbench.v

@@ -13,10 +13,11 @@ module testbench;
 
         $display("OKAY");
     end
-
+	wire c;
 
     top uut (
-        .b (clk )
+        .b (clk ),
+        .c (c)
     );
 
 endmodule

regression/issue_00086/top.v

-module top(b);
+module top(b,c);
 input b;
+output c;
+
+assign c = b;
 endmodule

regression/issue_00088/testbench.v

@@ -13,10 +13,11 @@ module testbench;
 
         $display("OKAY");
     end
-
+	wire c;
 
     top uut (
-        .b (clk )
+        .b (clk ),
+        .c (c)
     );
 
 endmodule

regression/issue_00088/top.v

 parameter X = 2;
 
-module top(b);
+module top(b,c);
 input b;
+output c;
+
 parameter Y = 3;
+
+assign c = b;
 endmodule