generated docs: more doc type awareness

[andrewrk]

Extracted from #21:

Here the semantic analysis dumper gives up:

zig/src/dump_analysis.cpp

Lines 921 to 924 in e0f0e2a

	default:
	jw_object_field(jw, "name");
	jw_string(jw, buf_ptr(&ty->name));
	break;

It should supply more type information to the docs, which can then be utilized here:

zig/lib/std/special/docs/main.js

Lines 532 to 537 in e0f0e2a

	default:
	if (wantHtml) {
	return escapeHtml(typeObj.name);
	} else {
	return typeObj.name;
	}

This will make more hyperlinks and syntax coloring work in the docs.

[andrewrk]

Irrelevant with the new autodocs system.