[Issue 18473] New: std.math.approxEqual no longer accepts nested ranges

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18473

          Issue ID: 18473
           Summary: std.math.approxEqual no longer accepts nested ranges
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: regression
          Priority: P1
         Component: phobos
          Assignee: nobody at puremagic.com
          Reporter: maximzms at gmail.com

approxEqual([[1, 2], [3, 4]], [[1, 2], [3, 4]]); // Error!

This does not fit function signature added by
https://github.com/dlang/phobos/commit/0becf2d2dba7dac0cc28869de0097840665f1037#diff-8b9f1870415268a4c40b628d596dc405

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