[K/N] cinterop: Do not expand non-constant macros

Expanding macros such as __FILE__ or __TIME__ exposes
arbitrary generated filenames and timestamps from the compiler
pipeline which are not useful for interop and makes the klib
generation non-deterministic. This patch instead redefines
the macros to just map to their name in the properties
available from Kotlin.

Co-authored-by: Johan Bay <jobay@google.com>

kotlin-native/Interop/Indexer/src/main/kotlin/org/jetbrains/kotlin/native/interop/indexer/MacroConstants.kt

@@ -60,6 +60,13 @@ private fun expandMacros(
         // or function-like construction (e.g. #define FOO throw()) but such a function is undeclared.
         compilerArgs += "-Werror=implicit-function-declaration"
 
+        // Some predefined macros expand to contextual values that won't make sense to expose in Kotlin properties.
+        // We instead redefined them to string values of the macro name.
+        compilerArgs += "-Wno-builtin-macro-redefined"
+        val predefinedMacros = listOf("__DATE__", "__TIME__", "__TIMESTAMP__", "__FILE__", "__FILE_NAME__", "__BASE_FILE__", "__LINE__")
+        predefinedMacros.forEach {
+            compilerArgs += "-D${it}=\"${it}\""
+        }
         // Ensure libclang reports all errors:
         compilerArgs += "-ferror-limit=0"
 
@@ -319,4 +326,4 @@ private fun canMacroBeConstant(cursor: CValue<CXCursor>): Boolean {
     // Requires updating to 3.9.1 due to https://bugs.llvm.org//show_bug.cgi?id=9069
 
     return true
-}
+}