Bug 11822 – `-de` switch causees ICE with `auto` return and other stuff

This code should be rejected to compile with `-de` switch: --- struct S(alias pred) { this(int) { pred(1); } void f() { pred(1); } } auto g(alias pred)() { return S!pred(1); } deprecated bool d(int) { return true; } auto h() { int i; return g!(n => d(i))(); } --- main.d(16): Deprecation: function main.d is deprecated main.d(8): instantiated from here: S!(__lambda1) main.d(16): instantiated from here: g!((n) => d(i)) main.d(16): Error: template instance main.h.g!((n) => d(i)) error instantiating Assertion failure: 'type->ty == Tfunction' on line 3178 in file 'func.c' ---

https://github.com/D-Programming-Language/dmd/pull/3034 This is a regression in 2.065alpha.

*** Issue 11857 has been marked as a duplicate of this issue. ***

Commits pushed to master at https://github.com/D-Programming-Language/dmd https://github.com/D-Programming-Language/dmd/commit/73b477b46be16c8896c5306027577f6ddbdd26ce fix Issue 11822 - switch causees ICE with return and other stuff https://github.com/D-Programming-Language/dmd/commit/24c1dff4856983533e813b89c1d8adf9492936d0 Merge pull request #3081 from WalterBright/fix11822 fix Issue 11822 - switch causes ICE with return and other stuff