Build doc improvements.

Bring property type strings to the start of property comments. This is
how source.android.com shows variables and paratemeters, and it is also
easier to read, especially when a comment ends with a code example.

Test: m soong_docs
Change-Id: Ic3e9db3a3711495998919ee95bbef6c7cb33b215

cmd/soong_build/writedocs.go

@@ -276,8 +276,9 @@ li a:hover:not(.active) {
     {{- else -}}
       <div class="simple" id="{{getModule}}.{{.Name}}">
         <span class="fixed">&nbsp;</span><b>{{.Name}} {{range .OtherNames}}, {{.}}{{end -}}</b>
-        {{- if .Text -}}{{.Text}}{{- end -}}
-        {{- with .OtherTexts -}}{{.}}{{- end -}}<i>{{.Type}}</i>
+        <i>{{.Type}}</i>
+        {{- if .Text -}}{{if ne .Text "\n"}}, {{end}}{{.Text}}{{- end -}}
+        {{- with .OtherTexts -}}{{.}}{{- end -}}
 	{{- if .Default -}}<i>Default: {{.Default}}</i>{{- end -}}
       </div>
     {{- end}}