d: Merge upstream dmd, druntime 26f049fb26, phobos 330d6a4fd.

D front-end changes:

	- Import dmd v2.105.0-beta.1.
	- Added predefined version identifier VisionOS (ignored by GDC).
	- Functions can no longer have `enum` storage class.
	- The deprecation of the `body` keyword has been reverted, it is
	  now an obsolete feature.
	- The error for `scope class` has been reverted, it is now an
	  obsolete feature.

D runtime changes:

	- Import druntime v2.105.0-beta.1.

Phobos changes:

	- Import phobos v2.105.0-beta.1.
	- AliasSeq has been removed from std.math.
	- extern(C) getdelim and getline have been removed from
	  std.stdio.

gcc/d/ChangeLog:

	* dmd/MERGE: Merge upstream dmd 26f049fb26.
	* dmd/VERSION: Bump version to v2.105.0-beta.1.
	* d-codegen.cc (get_frameinfo): Check useGC in condition.
	* d-lang.cc (d_handle_option): Set obsolete parameter when compiling
	with -Wall.
	(d_post_options): Set useGC to false when compiling with
	-fno-druntime.  Propagate obsolete flag to compileEnv.
	* expr.cc (ExprVisitor::visit (CatExp *)): Check useGC in condition.

libphobos/ChangeLog:

	* libdruntime/MERGE: Merge upstream druntime 26f049fb26.
	* src/MERGE: Merge upstream phobos 330d6a4fd.

10 files changed, 80 insertions, 28 deletions

diff --git a/libphobos/libdruntime/MERGE b/libphobos/libdruntime/MERGE
index 308d51b..a02a8cb 100644
--- a/libphobos/libdruntime/MERGE
+++ b/libphobos/libdruntime/MERGE
@@ -1,4 +1,4 @@
-a88e1335f7ea767ef438c34998f5d1f26008c586
+26f049fb26e755096dea3f1474decea7c0fef187
 
 The first line of this file holds the git revision number of the last
 merge done from the dlang/dmd repository.
diff --git a/libphobos/libdruntime/core/int128.d b/libphobos/libdruntime/core/int128.d
index 20fa7de..4c88f15 100644
--- a/libphobos/libdruntime/core/int128.d
+++ b/libphobos/libdruntime/core/int128.d
@@ -14,8 +14,8 @@ nothrow:
 @safe:
 @nogc:
 
-alias I = long;
-alias U = ulong;
+private alias I = long;
+private alias U = ulong;
 enum Ubits = uint(U.sizeof * 8);
 
 version (DigitalMars)
@@ -36,6 +36,10 @@ else
     else             private enum Cent_alignment = (size_t.sizeof * 2);
 }
 
+/**
+ * 128 bit integer type.
+ * See_also: $(REF Int128, std,int128).
+ */
 align(Cent_alignment) struct Cent
 {
     version (LittleEndian)
diff --git a/libphobos/libdruntime/core/internal/array/comparison.d b/libphobos/libdruntime/core/internal/array/comparison.d
index 821f96e..94fa243 100644
--- a/libphobos/libdruntime/core/internal/array/comparison.d
+++ b/libphobos/libdruntime/core/internal/array/comparison.d
@@ -83,7 +83,7 @@ int __cmp(T)(scope const T[] lhs, scope const T[] rhs) @trusted
 // This function is called by the compiler when dealing with array
 // comparisons in the semantic analysis phase of CmpExp. The ordering
 // comparison is lowered to a call to this template.
-int __cmp(T1, T2)(T1[] s1, T2[] s2)
+auto __cmp(T1, T2)(T1[] s1, T2[] s2)
 if (!__traits(isScalar, T1) && !__traits(isScalar, T2))
 {
     import core.internal.traits : Unqual;
@@ -237,3 +237,26 @@ if (!__traits(isScalar, T1) && !__traits(isScalar, T2))
     auto vb = [cast(void[])b[0], b[1]];
     assert(less2(va, vb));
 }
+
+// custom aggregate types
+@safe unittest
+{
+    // https://issues.dlang.org/show_bug.cgi?id=24044
+    // Support float opCmp(...) with array
+    static struct F
+    {
+        float f;
+        float opCmp(F other) const { return this.f - other.f; }
+    }
+
+    F[2] a = [F(1.0f), F(float.nan)];
+    F[2] b = [F(1.0f), F(1.0f)];
+    F[1] c = [F(1.0f)];
+
+    bool isNan(float f) { return f != f; }
+
+    assert(isNan(__cmp(a, b)));
+    assert(isNan(__cmp(a, a)));
+    assert(__cmp(b, b) == 0);
+    assert(__cmp(a, c) > 0);
+}
diff --git a/libphobos/libdruntime/core/lifetime.d b/libphobos/libdruntime/core/lifetime.d
index 89236db..3a55ca9 100644
--- a/libphobos/libdruntime/core/lifetime.d
+++ b/libphobos/libdruntime/core/lifetime.d
@@ -1570,7 +1570,11 @@ template forward(args...)
             alias fwd = arg;
         // (r)value
         else
-            @property auto fwd(){ pragma(inline, true); return move(arg); }
+            @property auto fwd()
+            {
+                version (DigitalMars) { /* @@BUG 23890@@ */ } else pragma(inline, true);
+                return move(arg);
+            }
     }
 
     alias Result = AliasSeq!();
diff --git a/libphobos/src/MERGE b/libphobos/src/MERGE
index e0011d7..a5414f16 100644
--- a/libphobos/src/MERGE
+++ b/libphobos/src/MERGE
@@ -1,4 +1,4 @@
-1921d29df25f2b44d6014c224e2018ce63ac2b71
+330d6a4fdbe82683e081959d0aeb53597b025bc4
 
 The first line of this file holds the git revision number of the last
 merge done from the dlang/phobos repository.
diff --git a/libphobos/src/std/algorithm/searching.d b/libphobos/src/std/algorithm/searching.d
index f061915..37a08de 100644
--- a/libphobos/src/std/algorithm/searching.d
+++ b/libphobos/src/std/algorithm/searching.d
@@ -1528,6 +1528,23 @@ if (isInputRange!Range && !isInfinite!Range &&
     assert([S(5), S(6)].extremum!"a.value" == S(5));
 }
 
+// https://issues.dlang.org/show_bug.cgi?id=24027
+@safe nothrow unittest
+{
+    class A
+    {
+        int a;
+        this(int a)
+        {
+            this.a = a;
+        }
+    }
+
+    auto test = new A(5);
+    A[] arr = [test];
+    assert(maxElement!"a.a"(arr) is test);
+}
+
 // find
 /**
 Finds an individual element in an $(REF_ALTTEXT input range, isInputRange, std,range,primitives).
diff --git a/libphobos/src/std/bigint.d b/libphobos/src/std/bigint.d
index 50f88da..0240ea1 100644
--- a/libphobos/src/std/bigint.d
+++ b/libphobos/src/std/bigint.d
@@ -323,7 +323,15 @@ public:
         else static if (op=="^^")
         {
             sign = (y & 1) ? sign : false;
-            data = BigUint.pow(data, u);
+            if (y < 0)
+            {
+                checkDivByZero();
+                data = cast(ulong) (data == 1);
+            }
+            else
+            {
+                data = BigUint.pow(data, u);
+            }
         }
         else static if (op=="&")
         {
@@ -411,6 +419,19 @@ public:
         ));
     }
 
+    // https://issues.dlang.org/show_bug.cgi?id=24028
+    @system unittest
+    {
+        import std.exception : assertThrown;
+        import core.exception : AssertError;
+
+        assert(BigInt(100) ^^ -1 == BigInt(0));
+        assert(BigInt(1) ^^ -1 == BigInt(1));
+        assert(BigInt(-1) ^^ -1 == BigInt(-1));
+        assert(BigInt(-1) ^^ -2 == BigInt(1));
+        assertThrown!AssertError(BigInt(0) ^^ -1);
+    }
+
     /**
      * Implements assignment operators of the form `BigInt op= BigInt`.
      */
diff --git a/libphobos/src/std/json.d b/libphobos/src/std/json.d
index 219af71..7d48890 100644
--- a/libphobos/src/std/json.d
+++ b/libphobos/src/std/json.d
@@ -6,6 +6,10 @@ Implements functionality to read and write JavaScript Object Notation values.
 JavaScript Object Notation is a lightweight data interchange format commonly used in web services and configuration files.
 It's easy for humans to read and write, and it's easy for machines to parse and generate.
 
+$(RED Warning: While $(LREF JSONValue) is fine for small-scale use, at the range of hundreds of megabytes it is
+known to cause and exacerbate GC problems. If you encounter problems, try replacing it with a stream parser. See
+also $(LINK https://forum.dlang.org/post/dzfyaxypmkdrpakmycjv@forum.dlang.org).)
+
 Copyright: Copyright Jeremie Pelletier 2008 - 2009.
 License:   $(HTTP www.boost.org/LICENSE_1_0.txt, Boost License 1.0).
 Authors:   Jeremie Pelletier, David Herberth
diff --git a/libphobos/src/std/math/package.d b/libphobos/src/std/math/package.d
index 19982ec..b5f914a 100644
--- a/libphobos/src/std/math/package.d
+++ b/libphobos/src/std/math/package.d
@@ -168,12 +168,6 @@ public import std.math.rounding;
 public import std.math.traits;
 public import std.math.trigonometry;
 
-// @@@DEPRECATED_2.102@@@
-// Note: Exposed accidentally, should be deprecated / removed
-deprecated("std.meta.AliasSeq was unintentionally available from std.math "
-           ~ "and will be removed after 2.102. Please import std.meta instead")
-public import std.meta : AliasSeq;
-
 package(std): // Not public yet
 /* Return the value that lies halfway between x and y on the IEEE number line.
  *
diff --git a/libphobos/src/std/stdio.d b/libphobos/src/std/stdio.d
index 19ce988..d9291b1 100644
--- a/libphobos/src/std/stdio.d
+++ b/libphobos/src/std/stdio.d
@@ -425,21 +425,6 @@ private extern (C) @nogc nothrow
         pragma(mangle, _FPUTWC.mangleof) int trustedFPUTWC(wchar_t ch, _iobuf* h) @trusted;
 }
 
-static if (__traits(compiles, core.sys.posix.stdio.getdelim))
-{
-    extern(C) nothrow @nogc
-    {
-        // @@@DEPRECATED_2.104@@@
-        deprecated("To be removed after 2.104. Use core.sys.posix.stdio.getdelim instead.")
-        ptrdiff_t getdelim(char**, size_t*, int, FILE*);
-
-        // @@@DEPRECATED_2.104@@@
-        // getline() always comes together with getdelim()
-        deprecated("To be removed after 2.104. Use core.sys.posix.stdio.getline instead.")
-        ptrdiff_t getline(char**, size_t*, FILE*);
-    }
-}
-
 //------------------------------------------------------------------------------
 private struct ByRecordImpl(Fields...)
 {