temp CI fix

Author: DedSec256

src/Compiler/Checking/ConstraintSolver.fs

@@ -337,7 +337,7 @@ type ConstraintSolverEnv =
 
     member csenv.amap = csenv.SolverState.amap
 
-    override csenv.ToString() = "<ConstraintSolverEnv> @ " + csenv.m.ToString()
+    override csenv.ToString() = "<ConstraintSolverEnv> @ " + nonNull (csenv.m.ToString())
 
 let MakeConstraintSolverEnv contextInfo css m denv = 
     { SolverState = css

src/Compiler/Facilities/DiagnosticsLogger.fs

@@ -88,7 +88,7 @@ exception DiagnosticWithText of number: int * message: string * range: range wit
 exception InternalError of message: string * range: range with
     override this.Message =
         match this :> exn with
-        | InternalError(msg, m) -> msg + m.ToString()
+        | InternalError(msg, m) -> msg + nonNull (m.ToString())
         | _ -> "impossible"
 
 exception InternalException of exn: Exception * msg: string * range: range with

src/Compiler/TypedTree/TypedTree.fs

@@ -5344,7 +5344,7 @@ type TOp =
         | Label n -> "Label(" + string n + ")"
         | TraitCall info -> "TraitCall(" + info.MemberLogicalName + ")"
         | LValueOp (op, vref) -> sprintf "%+A(%s)" op vref.LogicalName
-        | ILCall (_,_,_,_,_,_,_,ilMethRef,_,_,_) -> "ILCall(" + ilMethRef.ToString() + ",..)"
+        | ILCall (_,_,_,_,_,_,_,ilMethRef,_,_,_) -> "ILCall(" + nonNull (ilMethRef.ToString()) + ",..)"
 
 /// Represents the kind of record construction operation.
 type RecordConstructionInfo =