In recent PR https://github.com/llvm/llvm-project/pull/111531 for
Windows support, we enabled tests that require the `make` tool. On
Windows, default install directories likely contain spaces, in this case
e.g. `C:\Program Files (x86)\GnuWin32\bin\make.exe`. It's typically
handled well by CMake, so that today invocations from `dotest.py` don't
cause issues. However, we also have nested invocations from a number of
Makefiles themselves. These still failed if the path to the `make` tool
contains spaces.
This patch attempts to fix the functionalities/completion test by adding
quotes in the respective Makefile. If it keeps passing on the bots, we can
roll out the fix to all affected tests.
a4367d2d13