Add test of correct short-circuiting for logical assignment ops

Signed-off-by: Anna Rift <[email protected]>

Author: arifthpe

test/statements/opEquals/logicalOpEqualsShortCircuit.chpl

@@ -0,0 +1,25 @@
+proc returnsBool() {
+  writeln("evaluated");
+  return true;
+}
+
+var x : bool;
+
+writeln("shouldn't short-circuit for &&= with LHS true");
+x = true;
+x &&= returnsBool();
+writeln();
+
+writeln("should short-circuit for &&= with LHS false");
+x = false;
+x &&= returnsBool();
+writeln();
+
+writeln("should short-circuit for ||= with LHS true");
+x = true;
+x ||= returnsBool();
+writeln();
+
+writeln("shouldn't short-circuit for ||= with LHS false");
+x = false;
+x ||= returnsBool();

test/statements/opEquals/logicalOpEqualsShortCircuit.good

@@ -0,0 +1,9 @@
+shouldn't short-circuit for &&= with LHS true
+evaluated
+
+should short-circuit for &&= with LHS false
+
+should short-circuit for ||= with LHS true
+
+shouldn't short-circuit for ||= with LHS false
+evaluated