@let: bug re-using previously scalar location as array.

* test/let1.awk: New test case.

* interpret.h (r_interpret): Our new Op_clear_var opcode should
not only assign the null value to the variable, but reset its type
to Node_var_new.

1 files changed, 7 insertions, 0 deletions

diff --git a/test/let1.awk b/test/let1.awk
index 94a1a681..431fb8b8 100644
--- a/test/let1.awk
+++ b/test/let1.awk
@@ -38,6 +38,13 @@ BEGIN {
        print "b3", l3 "-" x
 }
 
+# test re-use of scalar var as array
+
+BEGIN {
+   @let (i = 3) { }
+   @let (a) { a[0] = 42 }
+}
+
 # test clearing uninitialized variables
 
 function f4()