[analyzer][StdLibraryFunctionsChecker] Do not match based on the restrict qualifier in C++
The "restrict" keyword is illegal in C++, however, many libc
implementations use the "restrict" compiler intrinsic in functions
prototypes. The "restrict" keyword qualifies a type as a restricted type
even in C++.
In case of any non-C99 languages, we don't want to match based on the
restrict qualifier because we cannot know if the given libc implementation
qualifies the paramter type or not.
Differential Revision: https://reviews.llvm.org/D87097