Fix Issue 10341 - ICE on case-range statement without an associated switch statement.
better bugfix comment
Merge pull request #2171 from dawgfoto/fix10274

better bugfix comment
Merge pull request #2167 from AndrejMitrovic/Fix10341

Issue 10341 - ICE on case-range statement without an associated switch statement
Revert "Merge pull request #2167 from AndrejMitrovic/Fix10341"

This reverts commit 384d833208c0b75de66c932fb2c78f70bdf6c902, reversing
changes made to af70ceb79ecae10a3b268886580cf3952fb21ab9.

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Currently auto-tester has random failures in Linux platform. From the circumstance, this change is the most doubtful. So I revert it conservatively.
Merge pull request #2167 from AndrejMitrovic/Fix10341

Issue 10341 - ICE on case-range statement without an associated switch statement

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I confirmed that the change was entirely unrelated to the auto-tester failures. So I re-merge this.
add explanation for Pull 2164
Merge pull request #2170 from WalterBright/explainPull2164

Explain pull 2164
Merge branch 'master' of github.com:D-Programming-Language/dmd