generate constructs in PSL vunits fixed (ghdl/ghdl#1372)

README.md

@@ -65,6 +65,10 @@ The next lists will grow during further development
 * `rose()` function (Synthesis only, see [rose() example](https://github.com/tmeissner/psl_with_ghdl/blob/master/src/psl_rose.vhd))
 * `fell()` function (Synthesis only, see [fell() example](https://github.com/tmeissner/psl_with_ghdl/blob/master/src/psl_fell.vhd))
 
+### Convenient stuff
+
+* Partial support of PSL vunits in synthesis
+
 ## Not yet supported by GHDL:
 
 * `forall` statement

issues/issue_1372.vhd

@@ -31,4 +31,7 @@ architecture psl of issue is
 
 begin
 
+  a <= '1';
+  b <= a;
+
 end architecture psl;

issues/tests.mk

@@ -6,4 +6,5 @@ issue_1321 \
 issue_1322 \
 issue_1345 \
 issue_1366 \
-issue_1367
+issue_1367 \
+issue_1372