Bug 20322 – checkaction=context fails for wstring/dstring arguments

Some unittests from core.internal.unittest.d fail to compile with -unittest -checkaction=context, e.g: src/core/internal/dassert.d(31): Error: forward reference to inferred return type of function call function () @trusted => cast(string)buffer() src/core/internal/dassert.d(116): Error: cannot implicitly convert expression idup(s) of type wstring to string src/core/internal/dassert.d(216): Error: template instance core.internal.dassert.miniFormat!wstring error instantiating src/core/internal/dassert.d(17): instantiated from here: miniFormatFakeAttributes!wstring src/core/internal/utf.d(885): instantiated from here: _d_assert_fail!("==", wstring, wstring) src/core/internal/dassert.d(31): Error: forward reference to inferred return type of function call function () @trusted => cast(string)buffer() src/core/internal/dassert.d(116): Error: cannot implicitly convert expression idup(s) of type dstring to string src/core/internal/dassert.d(216): Error: template instance core.internal.dassert.miniFormat!dstring error instantiating src/core/internal/dassert.d(17): instantiated from here: miniFormatFakeAttributes!dstring src/core/internal/utf.d(887): instantiated from here: _d_assert_fail!("==", dstring, dstring) src/core/internal/dassert.d(31): Error: forward reference to inferred return type of function call function () @trusted => cast(string)buffer() src/core/internal/dassert.d(116): Error: cannot implicitly convert expression idup(s) of type wstring to string The is caused by miniFormat assuming that the result of a string concenation is always a string (not e.g. a wstring)

@MoonlightSentinel created dlang/druntime pull request #2840 "Fix Issue 20322 - checkaction=context fails for wstring/dstring arguments" fixing this issue: - Fix Issue 20322 - checkaction=context fails for wstring/dstring arguments https://github.com/dlang/druntime/pull/2840

dlang/druntime pull request #2840 "Fix Issue 20322 - checkaction=context fails for wstring/dstring arguments" was merged into master: - 10738baeb93dfa36019ad4fbb3d936ce32b9b23a by Florian Brandt: Fix Issue 20322 - checkaction=context fails for wstring/dstring arguments https://github.com/dlang/druntime/pull/2840