[READY] Implement LSP type/call hierarchies as actual hierarchies #715

Job	Run time
C++ Lint	5m 54s
C++ Lint	5m 54s
Windows MSVC 17 x64 - C++ Benchmark	4m 22s
Windows MSVC 17 x64 - C++ Benchmark	4m 22s
ubuntu-20.04 - C++ Benchmark	2m 6s
ubuntu-20.04 - C++ Benchmark	2m 6s
Windows MSVC 17 x64 - test run	38m 26s
Windows MSVC 17 x64 - test run	38m 33s
ubuntu-20.04 - test run	27m 23s
ubuntu-20.04 - test run	27m 23s
Windows MSVC 17 x86 - test run	39m 4s
Windows MSVC 17 x86 - test run	39m 4s
macos-12 - C++ Benchmark	2m 21s
macos-12 - C++ Benchmark	2m 21s
Windows MSVC 16 x64 - test run	38m 36s
Windows MSVC 16 x64 - test run	38m 36s
macos-12 - test run	35m 41s
macos-12 - test run	35m 41s
ubuntu-20.04 - with Clang compiler - test run	25m 4s
ubuntu-20.04 - with Clang compiler - test run	25m 4s
ubuntu-20.04 - without libclang completer - test run	24m 56s
ubuntu-20.04 - without libclang completer - test run	24m 56s
	8h 7m 53s

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