Add tests for BigInt disallowed in LegacyOctalLike and NonOctal literals (#2253)

Ref https://github.com/tc39/proposal-bigint/issues/208

test/language/literals/bigint/legacy-octal-like-invalid-00n.js

@@ -0,0 +1,28 @@
+// Copyright (C) 2019 Leo Balter. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: prod-NumericLiteral
+description: >
+  The BigInt suffix is disallowed in LegacyOctalIntegerLiteral
+info: |
+  NumericLiteral ::
+    DecimalIntegerLiteral BigIntLiteralSuffix
+    NumericLiteralBase BigIntLiteralSuffix
+    LegacyOctalIntegerLiteral
+
+  NumericLiteralBase ::
+    BinaryIntegerLiteral
+    OctalIntegerLiteral
+    HexIntegerLiteral
+
+  BigIntLiteralSuffix :: n
+features: [BigInt]
+negative:
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+00n;

test/language/literals/bigint/legacy-octal-like-invalid-01n.js

@@ -0,0 +1,28 @@
+// Copyright (C) 2019 Leo Balter. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: prod-NumericLiteral
+description: >
+  The BigInt suffix is disallowed in LegacyOctalIntegerLiteral
+info: |
+  NumericLiteral ::
+    DecimalIntegerLiteral BigIntLiteralSuffix
+    NumericLiteralBase BigIntLiteralSuffix
+    LegacyOctalIntegerLiteral
+
+  NumericLiteralBase ::
+    BinaryIntegerLiteral
+    OctalIntegerLiteral
+    HexIntegerLiteral
+
+  BigIntLiteralSuffix :: n
+features: [BigInt]
+negative:
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+01n;

test/language/literals/bigint/legacy-octal-like-invalid-07n.js

@@ -0,0 +1,28 @@
+// Copyright (C) 2019 Leo Balter. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: prod-NumericLiteral
+description: >
+  The BigInt suffix is disallowed in LegacyOctalIntegerLiteral
+info: |
+  NumericLiteral ::
+    DecimalIntegerLiteral BigIntLiteralSuffix
+    NumericLiteralBase BigIntLiteralSuffix
+    LegacyOctalIntegerLiteral
+
+  NumericLiteralBase ::
+    BinaryIntegerLiteral
+    OctalIntegerLiteral
+    HexIntegerLiteral
+
+  BigIntLiteralSuffix :: n
+features: [BigInt]
+negative:
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+07n;

test/language/literals/bigint/non-octal-like-invalid-0008n.js

@@ -0,0 +1,28 @@
+// Copyright (C) 2019 Leo Balter. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: prod-NumericLiteral
+description: >
+  The BigInt suffix is disallowed in NonOctalDecimalIntegerLiteral
+info: |
+  NumericLiteral ::
+    DecimalIntegerLiteral BigIntLiteralSuffix
+
+  https://github.com/tc39/proposal-bigint/issues/208
+
+  NumericLiteral ::
+    DecimalBigIntegerLiteral
+
+  DecimalBigIntegerLiteral ::
+    0 BigIntLiteralSuffix
+    NonZeroDigit DecimalDigits_opt BigIntLiteralSuffix
+features: [BigInt]
+negative:
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+0008n;

test/language/literals/bigint/non-octal-like-invalid-012348n.js

@@ -0,0 +1,28 @@
+// Copyright (C) 2019 Leo Balter. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: prod-NumericLiteral
+description: >
+  The BigInt suffix is disallowed in NonOctalDecimalIntegerLiteral
+info: |
+  NumericLiteral ::
+    DecimalIntegerLiteral BigIntLiteralSuffix
+
+  https://github.com/tc39/proposal-bigint/issues/208
+
+  NumericLiteral ::
+    DecimalBigIntegerLiteral
+
+  DecimalBigIntegerLiteral ::
+    0 BigIntLiteralSuffix
+    NonZeroDigit DecimalDigits_opt BigIntLiteralSuffix
+features: [BigInt]
+negative:
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+012348n;

test/language/literals/bigint/non-octal-like-invalid-08n.js

@@ -0,0 +1,28 @@
+// Copyright (C) 2019 Leo Balter. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: prod-NumericLiteral
+description: >
+  The BigInt suffix is disallowed in NonOctalDecimalIntegerLiteral
+info: |
+  NumericLiteral ::
+    DecimalIntegerLiteral BigIntLiteralSuffix
+
+  https://github.com/tc39/proposal-bigint/issues/208
+
+  NumericLiteral ::
+    DecimalBigIntegerLiteral
+
+  DecimalBigIntegerLiteral ::
+    0 BigIntLiteralSuffix
+    NonZeroDigit DecimalDigits_opt BigIntLiteralSuffix
+features: [BigInt]
+negative:
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+08n;

test/language/literals/bigint/non-octal-like-invalid-09n.js

@@ -0,0 +1,28 @@
+// Copyright (C) 2019 Leo Balter. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: prod-NumericLiteral
+description: >
+  The BigInt suffix is disallowed in NonOctalDecimalIntegerLiteral
+info: |
+  NumericLiteral ::
+    DecimalIntegerLiteral BigIntLiteralSuffix
+
+  https://github.com/tc39/proposal-bigint/issues/208
+
+  NumericLiteral ::
+    DecimalBigIntegerLiteral
+
+  DecimalBigIntegerLiteral ::
+    0 BigIntLiteralSuffix
+    NonZeroDigit DecimalDigits_opt BigIntLiteralSuffix
+features: [BigInt]
+negative:
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+09n;