GoogleTest: Add DEF_SOURCE_LINE property to gtest_add_tests
gtest_add_tests() adds a custom property to tests which contains the path to the source file and the line number of test definitions.
An example use case is to enable VS Code CMake Tools to "Go to Source" from its Test Explorer UI. See merged implementation in vscode-cmake-tools.
Depends on !9305 (merged)
Topic-rename: GoogleTest-source-line
Edited by Brad King