[CFG] NFC: Modernize a test file for constructor initializer CFGs.
[CFG] NFC: Modernize a test file for constructor initializer CFGs.

Move FileCheck directives around so that it was easy to understand
what tests what and what effect do changes have.

Differential Revision: https://reviews.llvm.org/D61815

git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@361587 91177308-0d34-0410-b5e6-96231b3b80d8

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