cgen: fix generation of array names in generic structs (#7324)

vlib/v/gen/cgen.v

@@ -530,7 +530,7 @@ fn (g &Gen) cc_type2(t table.Type) string {
 			mut sgtyps := '_T'
 			for gt in sym.info.generic_types {
 				gts := g.table.get_type_symbol(if gt.has_flag(.generic) { g.unwrap_generic(gt) } else { gt })
-				sgtyps += '_$gts.name'
+				sgtyps += '_$gts.cname'
 			}
 			styp += sgtyps
 		}

vlib/v/parser/parse_type.v

@@ -387,7 +387,7 @@ pub fn (mut p Parser) parse_generic_struct_inst_type(name string) table.Type {
 		}
 		gts := p.table.get_type_symbol(gt)
 		bs_name += gts.name
-		bs_cname += gts.name
+		bs_cname += gts.cname
 		generic_types << gt
 		if p.tok.kind != .comma {
 			break

vlib/v/tests/generics_test.v

@@ -288,6 +288,14 @@ fn test_struct_from_other_module() {
 	assert g.msg.name == ''
 }
 
+fn test_generic_struct_print_array_as_field() {
+    foo := Foo<[]string>{
+        data: []string{}
+    }
+	assert foo.str() == 'Foo<array, string>{\n    data: []\n}'
+
+}
+
 /*
 struct Abc{ x int y int z int }