Intercept loader_log in testing framework #807

Job	Run time
codegen	14s
linux-32-no-asm	2m 8s
linux (gcc, g++, Debug, ubuntu-20.04)	2m 41s
chromium	1m 29s
linux-32 (Debug)	1m 58s
linux (gcc, g++, Debug, ubuntu-22.04)	3m 22s
linux-no-asm	3m 20s
linux-32 (Release)	2m 5s
linux (gcc, g++, Release, ubuntu-20.04)	6m 40s
linux (gcc, g++, Release, ubuntu-22.04)	7m 24s
linux (clang, clang++, Debug, ubuntu-20.04)	2m 9s
linux (clang, clang++, Debug, ubuntu-22.04)	3m 41s
linux (clang, clang++, Release, ubuntu-20.04)	4m 37s
linux (clang, clang++, Release, ubuntu-22.04)	4m 52s
mingw-no-asm	1m 21s
mingw	2m 15s
mingw-use-gas	52s
windows_clang (clang, Debug)	3m 32s
windows_clang (clang, Release)	3m 21s
windows_vs (Win32, Debug)	6m 22s
windows_vs-no-asm (Win32)	5m 7s
windows_clang (clang-cl, Debug)	3m 45s
mingw-no-asm-explicit	56s
windows_vs (Win32, Release)	5m 19s
windows_vs-no-asm (x64)	5m 17s
windows_clang (clang-cl, Release)	2m 50s
windows_vs (x64, Debug)	5m 29s
windows_vs (x64, Release)	5m 24s
iOS	44s
Universal Binary Testing (STATIC ON) w/ Ninja	1m 47s
tvOS	36s
mac (Debug, APPLE_STATIC_LOADER=ON)	4m 20s
Universal Binary Testing (STATIC ON) w/ Xcode	1m 13s
mac (Debug, APPLE_STATIC_LOADER=OFF)	5m 40s
Universal Binary Testing (STATIC OFF) w/ Ninja	2m 2s
mac (Release, APPLE_STATIC_LOADER=ON)	4m 26s
Universal Binary Testing (STATIC OFF) w/ Xcode	2m 7s
mac (Release, APPLE_STATIC_LOADER=OFF)	4m 35s
	2h 6m 0s

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