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tc39 · Oct 9, 2019 · 5c35ce9 · 5c35ce9
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diff --git a/test/language/expressions/coalesce/tco-cond.js b/test/language/expressions/coalesce/tco-cond.js
diff --git a/test/language/expressions/coalesce/tco-pos-null.js b/test/language/expressions/coalesce/tco-pos-null.js
@@ -1,8 +1,15 @@
 // Copyright (C) 2019 Leo Balter. All rights reserved.
 // This code is governed by the BSD license found in the LICENSE file.
+
 /*---
 description: Expression is a candidate for tail-call optimization.
 esid: sec-static-semantics-hascallintailposition
+info: |
+  Expression Rules
+
+  CoalesceExpression : CoalesceExpressionHead ?? BitwiseORExpression
+
+  1. Return HasCallInTailPosition of BitwiseORExpression with argument call.
 flags: [onlyStrict]
 features: [tail-call-optimization, coalesce-expression]
 includes: [tcoHelper.js]

diff --git a/test/language/expressions/coalesce/tco-pos-undefined.js b/test/language/expressions/coalesce/tco-pos-undefined.js
@@ -1,8 +1,15 @@
 // Copyright (C) 2019 Leo Balter. All rights reserved.
 // This code is governed by the BSD license found in the LICENSE file.
+
 /*---
 description: Expression is a candidate for tail-call optimization.
 esid: sec-static-semantics-hascallintailposition
+info: |
+  Expression Rules
+
+  CoalesceExpression : CoalesceExpressionHead ?? BitwiseORExpression
+
+  1. Return HasCallInTailPosition of BitwiseORExpression with argument call.
 flags: [onlyStrict]
 features: [tail-call-optimization, coalesce-expression]
 includes: [tcoHelper.js]