lang: opt-in UFCS — ufcs-marked fns + alias dot-dispatch, generic binding via receiver; one binding builder for plan-side generic returns

examples/expected/0053-basic-ufcs-opt-in.exit

@@ -0,0 +1 @@
+0

examples/expected/0053-basic-ufcs-opt-in.stderr

@@ -0,0 +1 @@
+

examples/expected/0053-basic-ufcs-opt-in.stdout

@@ -0,0 +1,8 @@
+marked: 42
+alias: 41
+direct: 41
+pipe: 41
+marked-direct: 42
+ptr-recv: 15
+generic-dot: 7
+generic-direct: 7

examples/expected/0838-memory-helpers.stdout

@@ -1,5 +1,6 @@
 create: 7 42
 pipe-create: 1
+dot-create: 2
 alloc: 10 40 len=4
 clone: 10 (orig 99)
 resize: 20 60 len=6

examples/expected/1166-diagnostics-ufcs-not-opted-in.exit

@@ -0,0 +1 @@
+1

examples/expected/1166-diagnostics-ufcs-not-opted-in.stderr

@@ -0,0 +1,10 @@
+error: 'bump' is not a ufcs function — a plain function does not dispatch via dot-call
+  --> examples/1166-diagnostics-ufcs-not-opted-in.sx:10:19
+   |
+10 |     print("{}\n", f.bump());
+   |                   ^^^^^^
+
+help: call it directly (`bump(receiver, ...)`), pipe it (`receiver |> bump(...)`), or declare it `bump :: ufcs (...) { ... }`
+   |
+10 |     print("{}\n", f.bump());
+   |                   ^^^^^^

examples/expected/1166-diagnostics-ufcs-not-opted-in.stdout

@@ -0,0 +1 @@
+