Merge "Revert "Enable -Werror=incompatible-function-pointer-types"" into main

		"-Werror=fortify-source",

		"-Werror=address-of-temporary",

		"-Werror=incompatible-function-pointer-types",

		"-Werror=null-dereference",

		"-Werror=return-type",

		"-fcommon",

		// http://b/191699019

		"-Wno-format-insufficient-args",

		// http://b/296321145

		// Indicates potential memory or stack corruption, so should be changed

		// to a hard error. Currently triggered by some vendor code.

		"-Wno-incompatible-function-pointer-types",

		// http://b/296321508

		// Introduced in response to a critical security vulnerability and

		// should be a hard error - it requires only whitespace changes to fix.