analyzer: close the ownership gaps that stopped the compiler compiling itself

an owned local can now move into a released owner declared in the same or an
outer block, and g = m*x lends a local owner to a global until the global is
assigned again in the same block. leaving that block, giving the local away, or
returning while the lend is open is an error. recasting a plain local now names
it and says it has no ownership to recast.

methdef and syntax_resident use the supported spellings, so make genome reaches
its fixpoint from a clean checkout. runerr.sh reads the first // expect: line,
since the include headers moved it off line 1.

1 files changed, 6 insertions, 0 deletions

diff --git a/tests/errors/lend_unrestored.zc b/tests/errors/lend_unrestored.zc
new file mode 100644
index 0000000..1b316df
--- /dev/null
+++ b/tests/errors/lend_unrestored.zc
@@ -0,0 +1,6 @@
+namespace;
+include rt;
+
+// expect: buf: is lent to global sink; assign the global again before the block that lent it ends
+word sink;
+fn main() { word buf = rt.new(4); sink = m*buf; buf[0] = 1; return 0; }