[Flang] Fix to the module procedure interface block ignoring implicit… (#85735)

… of host scoping unit.

Fix as proposed by @thtsikas [here
](11d07d9#commitcomment-139798026).

Author: harishch4

flang/lib/Semantics/resolve-names.cpp

@@ -4432,7 +4432,7 @@ Symbol &SubprogramVisitor::PushSubprogramScope(const parser::Name &name,
         CHECK(context().HasError(genericSymbol));
       }
     }
-    set_inheritFromParent(false);
+    set_inheritFromParent(hasModulePrefix);
   }
   if (Symbol * found{FindSymbol(name)};
       found && found->has<HostAssocDetails>()) {

flang/test/Semantics/separate-mp05.f90

@@ -7,8 +7,10 @@ module m
   !DEF: /m/smp MODULE, PUBLIC, PURE (Function) Subprogram REAL(4)
   !DEF: /m/smp/f EXTERNAL, PURE (Function) Subprogram REAL(4)
   !DEF: /m/smp/x INTENT(IN) ObjectEntity REAL(4)
-  !DEF: /m/smp/res (Implicit) ObjectEntity REAL(4)
+  !DEF: /m/smp/res ObjectEntity REAL(4)
   pure module function smp(f, x) result(res)
+  !REF: /m/smp/res
+  real res
    interface
     !REF: /m/smp/f
     !DEF: /m/smp/f/x INTENT(IN) ObjectEntity REAL(4)
@@ -32,7 +34,7 @@ pure function f(x) result(r)
 contains
  !DEF: /m/sm/smp MODULE, PUBLIC, PURE (Function) Subprogram REAL(4)
  module procedure smp
-  !DEF: /m/sm/smp/res (Implicit) ObjectEntity REAL(4)
+  !DEF: /m/sm/smp/res ObjectEntity REAL(4)
   !DEF: /m/sm/smp/f EXTERNAL, PURE (Function) Subprogram REAL(4)
   !DEF: /m/sm/smp/x INTENT(IN) ObjectEntity REAL(4)
   res = f(x)