Changes

Summary

1. update the discussion of unit type (details)
2. Update 'fork+exec' test utility to be valid also in C and C++. (details)
3. Add EOF test coverage for string reading. (details)
4. Fix fork+exec missed case / broken build (details)
5. Parse string literals to get their length, taking into account escape sequences. Getting this from the lexer would avoid redundent work, but that is not set up. This corrects some typeof evaluations which lead to incorrect sizeof expressions. (details)

update the discussion of unit type

Update 'fork+exec' test utility to be valid also in C and C++.

Add EOF test coverage for string reading.

Fix fork+exec missed case / broken build

Parse string literals to get their length, taking into account escape sequences. Getting this from the lexer would avoid redundent work, but that is not set up. This corrects some typeof evaluations which lead to incorrect sizeof expressions.