FreeRTOS SMP: direct access to current TCB inside stack macros #2968

Job	Run time
WIN32 MingW	4m 16s
WIN32 MSVC	5m 26s
Native GCC (macos-latest)	4m 42s
Native GCC (ubuntu-latest)	4m 14s
CMake Example with Native GCC	14s
GNU MSP430 Toolchain	3m 34s
GCC MicroBlaze Toolchain	3m 31s
GNU ARM Toolchain	3m 0s
	28m 57s

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