foreach(): loop variables are only available in the loop scope

Help/command/foreach.rst

Help/manual/cmake-policies.7.rst

Help/policy/CMP0124.rst

Help/release/dev/foreach-variable-scope.rst

Source/cmForEachCommand.cxx

Source/cmMakefile.cxx

Source/cmMakefile.h

Source/cmPolicies.h

Tests/RunCMake/foreach/RunCMakeTest.cmake

Tests/RunCMake/foreach/foreach-var-scope-CMP0124-NEW.cmake

Tests/RunCMake/foreach/foreach-var-scope-CMP0124-OLD.cmake