parser: missing comments, `fmt` removes comments between fields in map init with enum keys

[ttytm]

Describe the bug

v fmt will remove comments between map fields in an enum-key map initialization.

Expected Behavior

Comments are preserved.

Current Behavior

Comments are removed.

Reproduction Steps

Format the following code

enum HttpHeader {
	user_agent
	referer
}

headers := {
	HttpHeader.user_agent: 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36'
	// content_length: '17' // <-- will be deleted
	.referer:              'wwww.google.com'
	// content_length: '17' // <-- won't be deleted
}

Possible Solution

No response

Additional Information/Context

I couldn't fully isolate it but maybe that's a start:

"In-Between" comments are not contained in containers__map_init() anymore:

v/vlib/v/parser/containers.v

Line 211 in c1e302a

comments << p.eat_comments()

While the same comments are still present in the related parser__eat_comments() fn:

v/vlib/v/parser/parser.v

Line 914 in c1e302a

comments << p.comment()

V version

0.3.4

Environment details (OS name and version, etc.)

linux,arch;amd64