3552

Stop requiring jump instructions to explicitly provide a ':label' type
for jump targets.

This has been a source of repeated confusion for my students:
  a) They'd add the ':label' to the label definition rather than the
  jump target (label use)
  b) They'd spend time thinking about whether the initial '+' prefix was
  part of the label name.

In the process I cleaned up a couple of things:

  - the space of names is more cleanly partitioned into labels and
    non-labels (clarifying that '_' and '-' are non-label prefixes)
  - you can't use label names as regular variables anymore
  - you can infer the type of a label just from its name

1 files changed, 1 insertions, 1 deletions

diff --git a/061text.mu b/061text.mu
index f01c4c58..eeb90829 100644
--- a/061text.mu
+++ b/061text.mu
@@ -506,7 +506,7 @@ def interpolate template:text -> result:text [
     {
       # while i < template.length
       tem-done?:bool <- greater-or-equal i, tem-len
-      break-if tem-done?, +done:label
+      break-if tem-done?, +done
       # while template[i] != '_'
       in:char <- index *template, i
       underscore?:bool <- equal in, 95/_