Log two new first class procedure tests (#26214)

These tests are based off of #18413, though updated for the new syntax
for FCPs (based on the deprecation warnings I encountered when trying to
compile them).  One of them is a future due to the bug still being present.

A fresh checkout of the tests behaved as expected

test/functions/fcf/assignInIfExpr.bad

@@ -0,0 +1 @@
+assignInIfExpr.chpl:6: syntax error: near '{'

test/functions/fcf/assignInIfExpr.chpl

@@ -0,0 +1,7 @@
+// code from https://github.com/chapel-lang/chapel/issues/18413, note that
+// it did not compile then either, though at a later point in compilation
+var isHammingWeightFixed: bool = true;
+
+var projFn = if isHammingWeightFixed
+  then proc(x) { return x; }
+  else proc(x) { return x; };

test/functions/fcf/assignInIfExpr.future

@@ -0,0 +1,2 @@
+bug: syntax error when assigning fcf via an if expression
+#18413

test/functions/fcf/assignLater.chpl

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+config var isHammingWeightFixed: bool = true;
+
+var projFn: proc(x:int): int;
+
+if isHammingWeightFixed {
+  projFn = proc(x:int) { return x; };
+} else {
+  projFn = proc(x:int) { return x+1; };
+}
+
+writeln(projFn(1));

test/functions/fcf/assignLater.good

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