Use _get_platform_error() where more appropriate

Author: gingerBill

core/os/os2/path_posix.odin

@@ -133,7 +133,7 @@ _get_absolute_path :: proc(path: string, allocator: runtime.Allocator) -> (absol
 	rel_cstr := clone_to_cstring(rel, temp_allocator) or_return
 	path_ptr := posix.realpath(rel_cstr, nil)
 	if path_ptr == nil {
-		return "", Platform_Error(posix.errno())
+		return "", _get_platform_error()
 	}
 	defer posix.free(path_ptr)
 

core/os/os2/path_windows.odin

@@ -305,13 +305,13 @@ _get_absolute_path :: proc(path: string, allocator: runtime.Allocator) -> (absol
 	rel_utf16 := win32.utf8_to_utf16(rel, temp_allocator)
 	n := win32.GetFullPathNameW(cstring16(raw_data(rel_utf16)), 0, nil, nil)
 	if n == 0 {
-		return "", Platform_Error(win32.GetLastError())
+		return "", _get_platform_error()
 	}
 
 	buf := make([]u16, n, temp_allocator) or_return
 	n = win32.GetFullPathNameW(cstring16(raw_data(rel_utf16)), u32(n), cstring16(raw_data(buf)), nil)
 	if n == 0 {
-		return "", Platform_Error(win32.GetLastError())
+		return "", _get_platform_error()
 	}
 
 	return win32.utf16_to_utf8(buf, allocator)

core/os/os2/stat_windows.odin

@@ -287,9 +287,9 @@ _file_info_from_get_file_information_by_handle :: proc(path: string, h: win32.HA
 
 	ti: win32.FILE_ATTRIBUTE_TAG_INFO
 	if !win32.GetFileInformationByHandleEx(h, .FileAttributeTagInfo, &ti, size_of(ti)) {
-		err := win32.GetLastError()
-		if err != win32.ERROR_INVALID_PARAMETER {
-			return {}, Platform_Error(err)
+		err := _get_platform_error()
+		if perr, ok := is_platform_error(err); ok && perr != i32(win32.ERROR_INVALID_PARAMETER) {
+			return {}, err
 		}
 		// Indicate this is a symlink on FAT file systems
 		ti.ReparseTag = 0