cgen: fix const_embed_test.v error

cmd/tools/vtest-fixed.v

@@ -18,7 +18,6 @@ const (
 		'vlib/net/http/http_httpbin_test.v',
 		'vlib/net/http/http_test.v',
 		'vlib/regex/regex_test.v',
-		'vlib/v/tests/const_embed_test.v',
 		'vlib/v/tests/enum_bitfield_test.v',
 		'vlib/v/tests/fixed_array_test.v',
 		'vlib/v/tests/fn_test.v',

vlib/v/gen/cgen.v

@@ -1853,6 +1853,9 @@ fn (var g Gen) const_decl(node ast.ConstDecl) {
 			ast.CharLiteral {
 				g.const_decl_simple_define(name, val)
 			}
+			ast.FloatLiteral {
+				g.const_decl_simple_define(name, val)
+			}
 			ast.IntegerLiteral {
 				g.const_decl_simple_define(name, val)
 			}