Editorial: use more new-style intrinsic-names

Commit f1b22ef (#1376) changed lots of intrinsic-names
from old-style to new-style. This commit changes lots more.

(The only one I didn't change was %AsyncGenerator%, which would become
%AsyncGeneratorFunction.prototype%, which is maybe not as readable.
And I didn't change any old-style references in Table 7, of course.)

Note that changing intrinsic-names in <dfn>s to new-style
(for cases where the two styles differ)
means that old-style references probably don't get auto-linked.
But *not* changing them means that new-style references
don't get auto-linked, which seems worse to me.

(One could add a parallel set of <dfn>s so that both old and new get
auto-linked, or add special cases to the auto-linking code,
but both of those seem pointless if old-style is on the way out.)