Merging r322904 and r322905:

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r322904 | rnk | 2018-01-18 23:55:14 +0100 (Thu, 18 Jan 2018) | 3 lines

[CodeView] Sink complex inline functions to .cpp file, NFC

I'm cleaning up this code before I attempt to fix a line table bug.
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r322905 | rnk | 2018-01-18 23:55:43 +0100 (Thu, 18 Jan 2018) | 5 lines

[CodeView] Add line numbers for inlined call sites

We did this for inline call site line tables, but we hadn't done it for
regular function line tables yet. This patch copies that logic from
encodeInlineLineTable.
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/release_60@323117 91177308-0d34-0410-b5e6-96231b3b80d8