bug#30515: 26.0; `mouse-1' in Profiler report

[Drew Adams]

In the output of `profiler-report', `mouse-1' does not respect option
`mouse-1-click-follows-link'.

For a quick `mouse-1' click, `mouse-1' invokes
`profiler-report-toggle-entry'.  For a slow click (holding the button
depressed > 0.5 sec) it invokes `mouse-drag-region', but the subsequent
up event then still invokes `profiler-report-toggle-entry'.  The net
effect of a click (i.e., not dragging the mouse) is just that of
`profiler-report-toggle-entry'.

This gives users no easy way to use `mouse-1' to just set point.  They
can press `mouse-1', hold it pressed, and drag it, say, one char before
releasing it, but that also activates the region and sets mark.

`mouse-1' should respect option `mouse-1-click-follows-link', in
particular when its value is nil.

In GNU Emacs 26.0.91 (build 1, x86_64-w64-mingw32)
 of 2018-01-22
Repository revision: 752fba992b793a74d202c9cfc3e1a92fd458e748
Windowing system distributor `Microsoft Corp.', version 6.1.7601
Configured using:
 `configure --without-dbus --host=x86_64-w64-mingw32
 --without-compress-install 'CFLAGS=-O2 -static -g3''