Merge upstream stable

CHANGELOG.md

@@ -1,7 +1,7 @@
 # LDC master
 
 #### Big news
-- Frontend, druntime and Phobos are at version [2.108.0+](https://dlang.org/changelog/2.108.0.html). (#4591, #4615, #4619, #4622)
+- Frontend, druntime and Phobos are at version [2.108.0+](https://dlang.org/changelog/2.108.0.html). (#4591, #4615, #4619, #4622, #4623)
 - Support for [LLVM 18](https://releases.llvm.org/18.1.0/docs/ReleaseNotes.html). The prebuilt packages use v18.1.3 (except for macOS arm64). (#4599, #4605, #4607, #4604)
 - Android: Switch to native ELF TLS, supported since API level 29 (Android v10), dropping our former custom TLS emulation (requiring a modified LLVM and a legacy ld.bfd linker). The prebuilt packages themselves require Android v10+ (armv7a) / v11+ (aarch64) too, and are built with NDK r26d. Shared druntime and Phobos libraries are now available (`-link-defaultlib-shared`), as on regular Linux. (#4618)
 

dmd/expressionsem.d

@@ -5341,7 +5341,8 @@ private extern (C++) final class ExpressionSemanticVisitor : Visitor
                 lowering = new DotIdExp(exp.loc, lowering, Id.object);
 
                 auto tbn = exp.type.nextOf();
-                while (tbn.ty == Tarray)
+                size_t i = nargs;
+                while (tbn.ty == Tarray && --i)
                     tbn = tbn.nextOf();
                 auto unqualTbn = tbn.unqualify(MODFlags.wild | MODFlags.const_ |
                     MODFlags.immutable_ | MODFlags.shared_);

tests/dmd/runnable/test24498.d

@@ -0,0 +1,21 @@
+import core.memory;
+
+void main()
+{
+    {
+        int[][] a = new int[][](2, 2);
+        assert(!(GC.getAttr(a.ptr) & GC.BlkAttr.NO_SCAN));
+        assert(GC.getAttr(a[0].ptr) & GC.BlkAttr.NO_SCAN);
+    }
+    {
+        void*[][] a = new void*[][](2, 2);
+        assert(!(GC.getAttr(a.ptr) & GC.BlkAttr.NO_SCAN));
+        assert(!(GC.getAttr(a[0].ptr) & GC.BlkAttr.NO_SCAN));
+    }
+    {
+        int[][][] a = new int[][][](2, 2);
+        assert(!(GC.getAttr(a.ptr) & GC.BlkAttr.NO_SCAN));
+        assert(!(GC.getAttr(a[0].ptr) & GC.BlkAttr.NO_SCAN));
+        assert(a[0][0].ptr is null);
+    }
+}