minify-infinity not doing anything

[Cyp]

Describe the bug

The minify-infinity pass doesn't do anything.

To Reproduce

const infinities = [Infinity, 1/0, true/false, !0/!1, true/(true/(true/false))];
const zeroes = [1/Infinity, 1/(1/0), false/true, !1/!0, true/(true/false)];
const justone = Infinity;
alert(Infinity);

Actual Output

"use strict";var infinities=[Infinity,1/0,!0/!1,!0/!1,!0/0],zeroes=[1/Infinity,0,0,0,0],justone=Infinity;alert(Infinity);

Expected Output

"use strict";var infinities=[1/0,1/0,1/0,1/0,1/0],zeroes=[0,0,0,0,0],justone=1/0;alert(1/0);

Additional context

It returns here, and therefore doesn't do the substitution:

        if (path.isLVal() && !path.parentPath.isExpressionStatement()) {
          return;
        }

The path.parentPath.type is "ArrayExpression", "BinaryExpression", "VariableDeclarator" and "CallExpression", respectively.

I couldn't find any documentation on what .isExpressionStatement() is actually supposed to do, so I don't know whether the bug is in minify-infinity or in babel itself.

[boopathi]

Looks like this regressed in #241 ...