[plugin macros] clean up all usage of context; also document a few more things

docs/md_docs.md

@@ -207,21 +207,14 @@
  column: MD_u32,
 };
 
-////////////////////////////////
-//~ Message Levels
-
-@enum MD_MessageKind: {
- None,
- Warning,
- Error,
- CatastrophicError,
-}
-
 ////////////////////////////////
 //~ String-To-Node table
 
+@doc("Controls the behavior of routines that write into maps when the written key was already in the map.")
 @enum MD_MapCollisionRule: {
+ @doc("When the key written was already in the map, a new key value pair is attached to the same chain always. Leaving multiple values associated to the same key.")
  Chain,
+ @doc("When the key written was already in the map, the existing value is replaced with the newly inserted value.")
  Overwrite,
 }
 
@@ -303,6 +296,13 @@
 ////////////////////////////////
 //~ Parsing State
 
+@enum MD_MessageKind: {
+ None,
+ Warning,
+ Error,
+ CatastrophicError,
+}
+
 @struct MD_Error: {
  next: *MD_Error,
  string: MD_String8,