That probably depends on the font you set in ~/.Xdefaults?

I get 

             position: 146 of 146 (99%), column: 0
            character: ê (displayed as ê) (codepoint 234, #o352, #xea)
    preferred charset: unicode (Unicode (ISO10646))
code point in charset: 0xEA
               script: latin
               syntax: w which means: word
             category: .:Base, L:Left-to-right (strong), c:Chinese, j:Japanese, l:Latin, v:Viet
             to input: type "C-x 8 RET ea" or "C-x 8 RET LATIN SMALL LETTER E WITH CIRCUMFLEX"
          buffer code: #xC3 #xAA
            file code: #xC3 #xAA (encoded by coding system utf-8-unix)
              display: by this font (glyph code)
    xft:-unknown-PragmataPro-normal-normal-normal-*-17-*-*-*-m-0-iso10646-1 (#xAC)

Character code properties: customize what to show
  name: LATIN SMALL LETTER E WITH CIRCUMFLEX
  old-name: LATIN SMALL LETTER E CIRCUMFLEX
  general-category: Ll (Letter, Lowercase)
  decomposition: (101 770) ('e' '̂')

There are text properties here:
  fontified            nil

and I have this in my ~/.Xdefaults

emacs*font: PragmataPro
emacs*geometry: 80x24


On Wed, Jan 27, 2016 at 10:56 AM Ken Brown <kbrown@cornell.edu> wrote:
On 1/27/2016 2:25 AM, Paul Eggert wrote:
> -    xft:-unknown-DejaVu Sans Mono-normal-normal-
> +    xft:-PfEd-DejaVu Sans Mono-normal-normal-

FWIW, "xft:-unknown-DejaVu Sans Mono-normal-normal-" is still what I see
on my system.  But since this is just an example, I guess it doesn't matter.

Ken