Exponential operator in if condition is not transpiled

Original source code:

if (2 ** 3 > 0) { alert('test'); }

Expected transpiled code:

0 < Math.pow(2, 3) && alert("test");

Actual result

0 < 2 ** 3 && alert("test");

Same result in ternary operator.

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Also, it throws an error in Advanced Optimization.

JSC_INTERNAL_ERROR_UNEXPECTED_TOKEN: Internal Error: TypeCheck doesn't know how to handle EXPONENT at line 1 character 4
if (2 ** 3 > 0) { alert('test'); }
    ^

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If another exponential operator is in body, they are transpiled. Original:

if (2 ** 3 > 0) { alert(2 ** 3); }

Transpiled:

0 < Math.pow(2, 3) && alert(Math.pow(2, 3));

[brad4d]

@teppeis I’ve reproduced this in the unit test. I’m debugging it now.

[teppeis]

@MatrixFrog @brad4d thanks!