[PATCHv2] Handle not explicitly zero terminated strings in merge sections

[Bernd Edlinger]

Hi,

this is an upate of the string-merge section, it is based on the V2-STRING_CST
semantic patch series, which was finally installed yesterday.
It merges single-byte string constants with or without terminating NUL.
The patch has the same Ada and C test cases that were already in the V1 patch.

Thus there are no pre-requisite patches necessary at this time.

Bootstrapped and reg-tested on x86_64-pc-linux-gnu.
Is it OK for trunk?


Thanks
Bernd.
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