ResolveComReference task fails when executing build from child AppDomain

I've run into following problem, when trying to execute build in child app domain of main process:

```
Invoke-MSBuild : C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\15.0\Bin\Microsoft.Common.CurrentVersion.targets(2545,5):
error MSB4061: The "ResolveComReference" task could not be instantiated from "Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a".
Could not load file or assembly 'Microsoft.Build, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies.
The system cannot find the file specified.
```
The issue appears to be caused by fact that build is being run from child app domain of main process (powershell.exe in my case). `ResolveComReference` (extended from `AppDomainIsolatedTaskExtension`) does not use ApplicationBase of child appdomain, but instead uses ApplicationBase of parent PowerShell process.

Log from Fuslogvw.exe (Assembly Binding Log Viewer)
```
*** Assembly Binder Log Entry (2017-03-22 @ 22:53:23) ***

The operation failed.
Bind result: hr = 0x80070002. The system cannot find the file specified.

Assembly manager loaded from: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\clr.dll
Running under executable C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
--- A detailed error log follows.

=== Pre-bind state information ===
LOG: DisplayName = Microsoft.Build, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
(Fully-specified)
LOG: Appbase = file:///C:/Windows/System32/WindowsPowerShell/v1.0/
LOG: Initial PrivatePath = NULL
LOG: Dynamic Base = NULL
LOG: Cache Base = NULL
LOG: AppName = powershell.exe
Calling assembly : (Unknown).
===
LOG: This bind starts in default load context.
LOG: No application configuration file found.
LOG: Using host configuration file:
LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework64\v4.0.30319\config\machine.config.
LOG: GAC Lookup was unsuccessful.
LOG: Attempting download of new URL file:///C:/Windows/System32/WindowsPowerShell/v1.0/Microsoft.Build.DLL.
LOG: Attempting download of new URL file:///C:/Windows/System32/WindowsPowerShell/v1.0/Microsoft.Build/Microsoft.Build.DLL.
LOG: Attempting download of new URL file:///C:/Windows/System32/WindowsPowerShell/v1.0/Microsoft.Build.EXE.
LOG: Attempting download of new URL file:///C:/Windows/System32/WindowsPowerShell/v1.0/Microsoft.Build/Microsoft.Build.EXE.
LOG: All probing URLs attempted and failed.
```