Fix: ignore comments in unreachable statement check. (#1478)

warn/warn_control_flow.go

diff --git a/warn/warn_control_flow.go b/warn/warn_control_flow.go
index 8b244c3..c1be14f 100644
--- a/warn/warn_control_flow.go
+++ b/warn/warn_control_flow.go
@@ -118,6 +118,9 @@
 	unreachable := false
 	for _, stmt := range stmts {
 		if unreachable {
+			if _, ok := stmt.(*build.CommentBlock); ok {
+    			continue
+    		}
 			callback(stmt)
 			return true
 		}

warn/warn_control_flow_test.go

diff --git a/warn/warn_control_flow_test.go b/warn/warn_control_flow_test.go
index 6560765..d6fcdff 100644
--- a/warn/warn_control_flow_test.go
+++ b/warn/warn_control_flow_test.go
@@ -282,6 +282,13 @@
 		`:4: The statement is unreachable.`,
 	}, scopeEverywhere)
 
+	// unreachable comment is ok
+	checkFindings(t, "unreachable", `
+def foo():
+  fail("die")
+
+  # comment
+`, []string{}, scopeEverywhere)
 }
 
 func TestNoEffect(t *testing.T) {