Test updates following 23291 and 23283 (chapel-lang#23348)

Follow-up to PRs chapel-lang#23291 and chapel-lang#23283. This PR just updates some testing
files that don't run in all configurations to remove warnings introduced
in those PRs.

Test change only - not reviewed.

test/gpu/interop/cuBLAS/cuBLAS.chpl

@@ -31,7 +31,7 @@ module cuBLAS {
     return gpu_ptr;
   }
 
-  proc gpu_to_cpu(dst_ptr: c_ptr(void), src_ptr: DevicePtr, size: c_size_t){
+  proc gpu_to_cpu(dst_ptr: c_ptr(void), src_ptr: DevicePtr(?), size: c_size_t){
     require "c_cublas.h", "c_cublas.o";
     to_cpu(dst_ptr, src_ptr.val, size);
   }

test/library/packages/LAPACK/TestHelpers.chpl

@@ -75,20 +75,20 @@ module TestHelpers {
       this.matrix_domain = {1..#rows,1..#columns};
       this.epsilon = error;
 
-      this.complete();
+      init this;
       this.populateFromArray( input_array, input_row_order );
 
     }
 
-    proc init( matrix: borrowed LAPACK_Matrix, type data_type = matrix.data_type ){
+    proc init( matrix: borrowed LAPACK_Matrix(?), type data_type = matrix.data_type ){
       this.data_type = data_type;
       this.row_major = matrix.row_major;
       this.rows = matrix.rows;
       this.columns = matrix.columns;
       this.data_domain = matrix.data_domain;
       this.matrix_domain = matrix.matrix_domain;
 
-      this.complete();
+      init this;
 
       for idx in data_domain do this.data[idx] = matrix.data[idx];
       this.epsilon = matrix.epsilon;
@@ -190,8 +190,8 @@ module TestHelpers {
   }
 
   // Not using type queries to work around issue #13721
-  operator LAPACK_Matrix.*(A: borrowed LAPACK_Matrix,
-                           B: borrowed LAPACK_Matrix): owned LAPACK_Matrix(A.data_type) {
+  operator LAPACK_Matrix.*(A: borrowed LAPACK_Matrix(?),
+                           B: borrowed LAPACK_Matrix(?)): owned LAPACK_Matrix(A.data_type) {
     if A.data_type != B.data_type then
       compilerError("data_type mismatch in *");
 
@@ -212,8 +212,8 @@ module TestHelpers {
     return retmatrix;
   }
 
-  operator LAPACK_Matrix.==(A: borrowed LAPACK_Matrix,
-                            B: borrowed LAPACK_Matrix ): bool {
+  operator LAPACK_Matrix.==(A: borrowed LAPACK_Matrix(?),
+                            B: borrowed LAPACK_Matrix(?) ): bool {
     if A.data_type != B.data_type then
       compilerError("data_type mismatch in ==");