Add regression tests for enum and struct line info

Check that when an error message for a enum or struct data type is
generated it points to the location of the declaration of the type.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>

ivtest/gold/enum_line_info.gold

@@ -0,0 +1,5 @@
+./ivltests/enum_line_info.v:7: error: Enumeration name B and A have the same value: 1'd0
+./ivltests/enum_line_info.v:12: error: Enumeration name D and C have the same value: 1'd0
+./ivltests/enum_line_info.v:17: error: Enumeration name F and E have the same value: 1'd0
+./ivltests/enum_line_info.v:22: error: Enumeration name H and G have the same value: 1'd0
+5 error(s) during elaboration.

ivtest/gold/struct_line_info.gold

@@ -0,0 +1,4 @@
+./ivltests/struct_line_info.v:7: error: Member r of packed struct/union must be packed.
+./ivltests/struct_line_info.v:12: error: Member r of packed struct/union must be packed.
+./ivltests/struct_line_info.v:17: error: Member r of packed struct/union must be packed.
+3 error(s) during elaboration.

ivtest/ivltests/enum_line_info.v

@@ -0,0 +1,32 @@
+// Checks that the line and file information is correctly attached to a enum
+// data type and will be used when printing an error message about the enum.
+
+module test;
+
+// Direct
+enum logic {
+  A, B = A
+} e1;
+
+// Used in a struct
+typedef enum logic {
+  C, D = C
+} enum1_type;
+
+// Used as a signal type
+typedef enum logic {
+  E, F = E
+} enum2_type;
+
+// Unreferenced
+typedef enum logic {
+  G, H = G
+} enum3_type;
+
+struct packed {
+  enum1_type e;
+} s;
+
+enum2_type e2;
+
+endmodule

ivtest/ivltests/struct_line_info.v

@@ -0,0 +1,24 @@
+// Checks that the line and file information is correctly attached to a struct
+// data type and will be used when printing an error message about the struct.
+
+module test;
+
+// Direct
+struct packed {
+  real r;
+} s1;
+
+// Used in a struct
+typedef struct packed {
+  real r;
+} struct1_type;
+
+// Used as a signal type
+typedef struct packed {
+  struct1_type s;
+  real r;
+} struct2_type;
+
+struct2_type s2;
+
+endmodule

ivtest/regress-sv.list

@@ -236,6 +236,7 @@ enum_dims_invalid	CE,-g2005-sv		ivltests
 enum_in_struct		normal,-g2005-sv	ivltests
 enum_in_class		normal,-g2005-sv	ivltests
 enum_in_class_name_coll	CE,-g2005-sv		ivltests
+enum_line_info		CE,-g2005-sv		ivltests gold=enum_line_info.gold
 enum_next		normal,-g2005-sv	ivltests
 enum_order		normal,-g2005-sv	ivltests
 enum_ports		normal,-g2005-sv	ivltests
@@ -381,6 +382,7 @@ struct6			normal,-g2009		ivltests
 struct7			normal,-g2009		ivltests
 struct8			normal,-g2009		ivltests
 struct9			normal,-g2009		ivltests
+struct_line_info	CE,-g2009		ivltests gold=struct_line_info.gold
 struct_packed_array	normal,-g2009		ivltests
 struct_packed_array2	normal,-g2009		ivltests
 struct_packed_sysfunct	normal,-g2009		ivltests