[lldb/CMake] Fix install for multi-configuration generators.

For multi-generator builds like MSVC and Xcode, the install source and
destination of the lldb-python-scripts target contains configuration
dependent paths and therefore need to be substituted.

Differential revision: https://reviews.llvm.org/D76827

Author: JDevlieghere

lldb/CMakeLists.txt

@@ -224,6 +224,8 @@ if (LLDB_ENABLE_PYTHON)
   else()
     set(LLDB_PYTHON_INSTALL_PATH ${LLDB_PYTHON_RELATIVE_PATH})
   endif()
+  string(REPLACE ${CMAKE_CFG_INTDIR} "\$\{CMAKE_INSTALL_CONFIG_NAME\}" LLDB_PYTHON_INSTALL_PATH ${LLDB_PYTHON_INSTALL_PATH})
+  string(REPLACE ${CMAKE_CFG_INTDIR} "\$\{CMAKE_INSTALL_CONFIG_NAME\}" lldb_python_build_path ${lldb_python_build_path})
   add_custom_target(lldb-python-scripts)
   add_dependencies(lldb-python-scripts finish_swig)
   install(DIRECTORY ${lldb_python_build_path}/../