lib/std/fmt.zig            | 64 +++++++++++++++++++++++---------
 src/AstGen.zig             |  7 ++++
 src/Sema.zig               | 49 ++++++++++++++++++------
 src/Zir.zig                |  2 +
 test/behavior/typename.zig | 61 +++++++++++++-----------------
 5 files changed, 118 insertions(+), 65 deletions(-)