address pltaform orders and other nits

Author: michael-yuji

lib/AST/PlatformKind.cpp

@@ -286,6 +286,8 @@ swift::tripleOSTypeForPlatform(PlatformKind platform) {
   case PlatformKind::visionOS:
   case PlatformKind::visionOSApplicationExtension:
     return llvm::Triple::XROS;
+  case PlatformKind::FreeBSD:
+    return llvm::Triple::FreeBSD;
   case PlatformKind::OpenBSD:
     return llvm::Triple::OpenBSD;
   case PlatformKind::Windows:

lib/IRGen/TBDGen.cpp

@@ -245,10 +245,10 @@ getLinkerPlatformId(OriginallyDefinedInAttr::ActiveVersion Ver,
   switch(Ver.Platform) {
   case swift::PlatformKind::none:
     llvm_unreachable("cannot find platform kind");
-  case swift::PlatformKind::OpenBSD:
-    llvm_unreachable("not used for this platform");
   case swift::PlatformKind::FreeBSD:
     llvm_unreachable("not used for this platform");
+  case swift::PlatformKind::OpenBSD:
+    llvm_unreachable("not used for this platform");
   case swift::PlatformKind::Windows:
     llvm_unreachable("not used for this platform");
   case swift::PlatformKind::iOS:

stdlib/public/Platform/Platform.swift

@@ -387,4 +387,7 @@ public var environ: UnsafeMutablePointer<UnsafeMutablePointer<CChar>?> {
 
 #if os(FreeBSD)
 public let inet_pton = __inet_pton
+@inlinable public func inet_pton(_ af: CInt, _ src: UnsafePointer<CChar>!, _ dst: UnsafeMutableRawPointer!) -> CInt {
+  __inet_pton(af, src, dst)
+}
 #endif

stdlib/public/Platform/glibc.modulemap.gyb

@@ -19,7 +19,7 @@
 /// It's not named just Glibc so that it doesn't conflict in the event of a
 /// future official glibc modulemap.
 module SwiftGlibc [system] {
-% if CMAKE_SDK in ["LINUX", "OPENBSD", "FREEBSD"]:
+% if CMAKE_SDK in ["LINUX", "FREEBSD", "OPENBSD"]:
       link "m"
 % end
 % if CMAKE_SDK in ["LINUX", "FREEBSD", "OPENBSD", "CYGWIN"]:

stdlib/public/runtime/CMakeLists.txt

@@ -93,8 +93,7 @@ set(swift_runtime_backtracing_sources
   Backtrace.cpp
   BacktraceUtils.cpp
   CrashHandlerMacOS.cpp
-  CrashHandlerLinux.cpp
-)
+  CrashHandlerLinux.cpp)
 
 # Acknowledge that the following sources are known.
 set(LLVM_OPTIONAL_SOURCES