Automatic loading of PDB information

[michaelkvance]

If we follow the workflow idiom described in the previous issue, it should be possible to support automatic loading of symbols from PDB, since the session will be "locked" to a particular executable.

[dimitry-]

We had some discussions about this and the bottom line is that since symbol loading could take significant time especially when they are loaded from a remote - we want user to trigger this explicitly. Note that sampling usually involves multiple shared libraries so we probably will end up loading a symbols for multiple modules.

[dimitry-]

Tracked internally in http://b/159103838

[florian-kuebler]

This has been done recently.