[LLVM][CMake][NFC] Resolve FIXME: Rename LLVM_CMAKE_PATH to LLVM_CMAKE_DIR throughout the project

This way, we do not need to set LLVM_CMAKE_PATH to LLVM_CMAKE_DIR when (NOT LLVM_CONFIG_FOUND)

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D107717

NOKEYCHECK=True
GitOrigin-RevId: a2c319fdc6b35ae6d8578459f07c89042775e5ec
diff --git a/cmake/Modules/HandleOutOfTreeLLVM.cmake b/cmake/Modules/HandleOutOfTreeLLVM.cmake
index deaa2c3..588d48e 100644
--- a/cmake/Modules/HandleOutOfTreeLLVM.cmake
+++ b/cmake/Modules/HandleOutOfTreeLLVM.cmake
@@ -13,16 +13,16 @@
 set(LLVM_INCLUDE_DIR ${LLVM_PATH}/include CACHE PATH "Path to llvm/include")
 set(LLVM_PATH ${LLVM_PATH} CACHE PATH "Path to LLVM source tree")
 set(LLVM_MAIN_SRC_DIR ${LLVM_PATH})
-set(LLVM_CMAKE_PATH "${LLVM_PATH}/cmake/modules")
+set(LLVM_CMAKE_DIR "${LLVM_PATH}/cmake/modules")
 set(LLVM_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
 set(LLVM_LIBRARY_OUTPUT_INTDIR "${CMAKE_CURRENT_BINARY_DIR}/lib")
 
-if (EXISTS "${LLVM_CMAKE_PATH}")
-  list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_PATH}")
+if (EXISTS "${LLVM_CMAKE_DIR}")
+  list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_DIR}")
 elseif (EXISTS "${LLVM_MAIN_SRC_DIR}/cmake/modules")
   list(APPEND CMAKE_MODULE_PATH "${LLVM_MAIN_SRC_DIR}/cmake/modules")
 else()
-  message(FATAL_ERROR "Neither ${LLVM_CMAKE_PATH} nor ${LLVM_MAIN_SRC_DIR}/cmake/modules found. "
+  message(FATAL_ERROR "Neither ${LLVM_CMAKE_DIR} nor ${LLVM_MAIN_SRC_DIR}/cmake/modules found. "
                       "This is not a supported configuration.")
 endif()