d: Fix a couple of ICEs found in the dmd front-end (PR97842)

- Segmentation fault on incomplete static if.
- Segmentation fault resolving typeof() expression when gagging is on.

Reviewed-on: https://github.com/dlang/dmd/pull/11971

gcc/d/ChangeLog:

	PR d/97842
	* dmd/MERGE: Merge upstream dmd b6a779e49

3 files changed, 11 insertions, 1 deletions

diff --git a/gcc/d/dmd/MERGE b/gcc/d/dmd/MERGE
index e2a0bab..b00cb82 100644
--- a/gcc/d/dmd/MERGE
+++ b/gcc/d/dmd/MERGE
@@ -1,4 +1,4 @@
-95044d8e45a4320f07d9c75b4eb30e55688a8195
+b6a779e49a3bba8be6272e6730e14cbb6293ef77
 
 The first line of this file holds the git revision number of the last
 merge done from the dlang/dmd repository.
diff --git a/gcc/d/dmd/cond.c b/gcc/d/dmd/cond.c
index beda133..9f76e83 100644
--- a/gcc/d/dmd/cond.c
+++ b/gcc/d/dmd/cond.c
@@ -705,6 +705,10 @@ int StaticIfCondition::include(Scope *sc)
         sc = sc->push(sc->scopesym);
 
         bool errors = false;
+
+        if (!exp)
+            goto Lerror;
+
         bool result = evalStaticCondition(sc, exp, exp, errors);
         sc->pop();
 
diff --git a/gcc/d/dmd/mtype.c b/gcc/d/dmd/mtype.c
index bc66be0..6f0195a 100644
--- a/gcc/d/dmd/mtype.c
+++ b/gcc/d/dmd/mtype.c
@@ -7418,6 +7418,12 @@ void TypeTypeof::resolve(Loc loc, Scope *sc, Expression **pe, Type **pt, Dsymbol
 
     //printf("TypeTypeof::resolve(sc = %p, idents = '%s')\n", sc, toChars());
     //static int nest; if (++nest == 50) *(char*)0=0;
+    if (sc == NULL)
+    {
+        *pt = Type::terror;
+        error(loc, "Invalid scope.");
+        return;
+    }
     if (inuse)
     {
         inuse = 2;