Fortran: Fix associate with derived type array construtor [PR117347]

gcc/fortran/ChangeLog:

	PR fortran/117347

	* primary.cc (gfc_match_varspec): Add array constructors for
	guessing their type like with unresolved function calls.

gcc/testsuite/ChangeLog:

	* gfortran.dg/associate_71.f90: New test.

gcc/fortran/primary.cc

@@ -2423,6 +2423,7 @@ gfc_match_varspec (gfc_expr *primary, int equiv_flag, bool sub_flag,
 	 component name 're' or 'im' could be found.  */
       if (tgt_expr
 	  && (tgt_expr->expr_type == EXPR_FUNCTION
+	      || tgt_expr->expr_type == EXPR_ARRAY
 	      || (!resolved && tgt_expr->expr_type == EXPR_OP))
 	  && (sym->ts.type == BT_UNKNOWN
 	      || (inferred_type && sym->ts.type != BT_COMPLEX))

gcc/testsuite/gfortran.dg/associate_71.f90

@@ -0,0 +1,39 @@
+! { dg-do run }
+!
+! Check that pr117347 is fixed.
+! Contributed by Ivan Pribec  <[email protected]>
+
+program pr117347
+  implicit none
+
+  type :: point
+     real :: x = 42.
+  end type point
+
+  type(point) :: mypoint
+  real        :: pi(1)
+  associate (points =>  mypoint )
+    pi(:) = points% x
+  end associate
+  if (any(pi /= 42)) stop 1
+  associate (points => (mypoint))
+    pi(:) = points% x
+  end associate
+  if (any(pi /= 42)) stop 2
+  associate (points => [mypoint])
+    pi(:) = points% x
+  end associate
+  if (any(pi /= 42)) stop 3
+  associate (points => [rpoint()])
+    pi(:) = points% x
+  end associate
+  if (any(pi /= 35)) stop 4
+
+contains
+
+  function rpoint() result(r)
+    type(point) :: r
+    r%x = 35
+  end function
+end program
+