Report each line that has a var decl in an unnamed block

ivtest/gold/br_gh1182.gold

@@ -0,0 +1,3 @@
+./ivltests/br_gh1182.v:3: error: Variable declaration in unnamed block requires SystemVerilog.
+./ivltests/br_gh1182.v:4: error: Variable declaration in unnamed block requires SystemVerilog.
+./ivltests/br_gh1182.v:8: error: Variable declaration in unnamed block requires SystemVerilog.

ivtest/ivltests/br_gh1182.v

@@ -0,0 +1,11 @@
+module top;
+  initial begin
+    logic [7:0] data;
+    logic [3:0] tmp;
+  end
+
+  initial begin
+    logic [3:0] nib;
+    $display("PASSED");
+  end
+endmodule

ivtest/regress-fsv.list

@@ -74,6 +74,7 @@ br1027e				normal			ivltests gold=br1027e-fsv.gold
 br_gh25a			normal			ivltests
 br_gh25b			normal			ivltests
 br_gh567			normal			ivltests
+br_gh1182			normal			ivltests
 check_constant_3		normal			ivltests
 function4			normal			ivltests
 module_inout_port_type		normal			ivltests

ivtest/regress-vlg.list

@@ -363,6 +363,7 @@ br_gh1175f		CE			ivltests gold=br_gh1175f.gold
 br_gh1178a		CE			ivltests gold=br_gh1178a.gold
 br_gh1178b		normal			ivltests
 br_gh1178c		normal			ivltests
+br_gh1182		CE			ivltests gold=br_gh1182.gold
 br_ml20150315		normal			ivltests gold=br_ml_20150315.gold
 br_ml20150321		CE			ivltests
 br_mw20171108		normal			ivltests

parse.y

@@ -6708,7 +6708,7 @@ statement_item /* This is roughly statement_item in the LRM */
       {
         if (!$2) {
 	      if ($4) {
-		    pform_requires_sv(@4, "Variable declaration in unnamed block");
+		    pform_block_decls_requires_sv();
 	      } else {
 		    /* If there are no declarations in the scope then just delete it. */
 		    pform_pop_scope();

pform.cc

@@ -3364,6 +3364,16 @@ bool pform_requires_sv(const struct vlltype&loc, const char *feature)
       return false;
 }
 
+void pform_block_decls_requires_sv(void)
+{
+      for (auto const& wire : lexical_scope->wires) {
+	    struct vlltype loc;
+	    loc.text = wire.second->get_file();
+	    loc.first_line = wire.second->get_lineno();
+	    pform_requires_sv(loc, "Variable declaration in unnamed block");
+      }
+}
+
 void pform_check_net_data_type(const struct vlltype&loc, NetNet::Type net_type,
 			       const data_type_t *data_type)
 {

pform.h

@@ -583,6 +583,7 @@ extern bool allow_timeprec_decl;
 void pform_put_enum_type_in_scope(enum_type_t*enum_set);
 
 bool pform_requires_sv(const struct vlltype&loc, const char *feature);
+void pform_block_decls_requires_sv(void);
 
 void pform_start_parameter_port_list();
 void pform_end_parameter_port_list();