fix errors in comments

[comfsrt]

libsolc/libsolc.cpp
std::std::string --> std::std::string fix duplicate std::

libsolidity/analysis/ControlFlowBuilder.h
is creates --> is created

libsolidity/interface/ABI.h
JSONrepresentation --> JSON representation

[github-actions]

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[comfsrt]

@cameel its true ?

[cameel]

Looks good, so if you include your changes from #15876, we can merge this.

But please also fix your commits. They should have proper descriptions saying what you're changing - just saying which file was updated is useless (git already provides that information). In this case the changes are trivial enough that it would also be fine to just squash them into one commit.

[comfsrt]

@cameel done , thanks