[READY] Implement LSP type/call hierarchies as actual hierarchies #695

Job	Run time
C++ Lint	6m 34s
C++ Lint	6m 34s
Windows MSVC 17 x64 - C++ Benchmark	4m 54s
Windows MSVC 17 x64 - C++ Benchmark	4m 54s
ubuntu-20.04 - C++ Benchmark	1m 51s
ubuntu-20.04 - C++ Benchmark	1m 51s
Windows MSVC 17 x64 - test run	33m 44s
Windows MSVC 17 x64 - test run	33m 44s
ubuntu-20.04 - test run	21m 49s
ubuntu-20.04 - test run	21m 49s
Windows MSVC 17 x86 - test run	34m 49s
Windows MSVC 17 x86 - test run	34m 23s
macos-12 - C++ Benchmark	2m 26s
macos-12 - C++ Benchmark	2m 26s
Windows MSVC 16 x64 - test run	31m 28s
Windows MSVC 16 x64 - test run	31m 28s
macos-12 - test run	27m 3s
macos-12 - test run	27m 3s
ubuntu-20.04 - with Clang compiler - test run	21m 50s
ubuntu-20.04 - with Clang compiler - test run	21m 50s
ubuntu-20.04 - without libclang completer - test run	22m 46s
ubuntu-20.04 - without libclang completer - test run	22m 46s
	6h 58m 2s

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