validate tags for typos

it turns out there were typos which are now fixed :D

Bug: 317293882
Test: build tree
Change-Id: I91dc08f00e8dd2e9dcb9101307d9b04bdcadea11
diff --git a/cc/symbolfile/__init__.py b/cc/symbolfile/__init__.py
index 94c8567..345e9f9 100644
--- a/cc/symbolfile/__init__.py
+++ b/cc/symbolfile/__init__.py
@@ -46,6 +46,15 @@
     Arch('x86_64'),
 )
 
+# TODO: it would be nice to dedupe with 'has_*_tag' property methods
+SUPPORTED_TAGS = ALL_ARCHITECTURES + (
+    Tag('apex'),
+    Tag('llndk'),
+    Tag('platform-only'),
+    Tag('systemapi'),
+    Tag('var'),
+    Tag('weak'),
+)
 
 # Arbitrary magic number. We use the same one in api-level.h for this purpose.
 FUTURE_API_LEVEL = 10000
@@ -136,6 +145,8 @@
 
 def is_api_level_tag(tag: Tag) -> bool:
     """Returns true if this tag has an API level that may need decoding."""
+    if tag.startswith('llndk-deprecated='):
+        return True
     if tag.startswith('introduced='):
         return True
     if tag.startswith('introduced-'):
@@ -170,6 +181,9 @@
         ParseError: An unknown version name was found in a tag.
     """
     if not is_api_level_tag(tag):
+        if tag not in SUPPORTED_TAGS:
+            raise ParseError(f'Unsupported tag: {tag}')
+
         return tag
 
     name, value = split_tag(tag)